Unit of time

Table showing quantitative relationships between common units of time

A unit of time or midst unit is any particular time interval, used as a standard way of measuring or expressing duration. The base unit of time in the International System of Units (SI) and by extension most of the Western world, is the second, defined as about 9 billion oscillations of the caesium atom.

Note: The light-year is not a unit of time, but a unit of length of about 9.5 petametres (9 454 254 955 488 kilometers).

List

Units of time

Unit	Length, Duration and Size	Notes
icososecond	10−60 s	One novemdecillionth of a second. The smallest unit of time.
icosominute	10−60 m	One novemdecillionth of a minute or 60 icososeconds.
ennecosecond	10−57 s	One octodecillionth of a second.
icosohour	10−60 h	One novemdecillionth of an hour or 3,600 icososeconds.
ennecominute	10−57 m	One octodecillionth of a minute or 60 ennecoseconds.
icosoday	10−60 d	One novemdecillionth of a day or 24 icosohours.
icosoweek	10−60 w	One novemdecillionth of a week or seven icosodays.
octecosecond	10−54 s	One septendecillionth of a second.
icosofortnight	10−60 fn	One novemdecillionth of a fortnight or two icosoweeks.
icosomonth	10−60 m	One novemdecillionth of a month or 2.628 octecoseconds.
ennecohour	10−57 h	One octodecillionth of an hour or 3,600 ennecoseconds.
icosoquarter	10−60 q	One novemdecillionth of a quarter or 7.884 octecoseconds.
icosoannum	10−60 yr	One novemdecillionth of a year or 31.536 octecoseconds. Also called "icosoyear".
octecominute	10−54 m	One septendecillionth of a minute or 60 octecoseconds.
ennecoday	10−57 d	One octodecillionth of a day or 24 ennecohours.
ennecoweek	10−57 w	One octodecillionth of a week or seven ennecodays.
heptecosecond	10−51 s	One sexdecillionth of a second.
ennecofortnight	10−57 fn	One octodecillionth of a fortnight or two ennecoweeks.
ennecomonth	10−57 m	One octodecillionth of a month or 2.628 heptecoseconds.
octecohour	10−54 h	One septendecillionth of an hour or 3,600 octecoseconds.
ennecoquarter	10−57 q	One octodecillionth of a quarter or 7.884 heptecoseconds.
ennecoannum	10−57 yr	One octodecillionth of a year or 31.536 heptecoseconds. Also called "ennecoyear".
heptecominute	10−51 m	One sexdecillionth of a minute or 60 heptecoseconds.
octecoday	10−54 d	One septendecillionth of a day or 24 octecohours.
octecoweek	10−54 w	One septendecillionth of a week or seven octecodays.
hexecosecond	10−48 s	One quindecillionth of a second.
octecofortnight	10−54 fn	One septendecillionth of a fortnight or two octecoweeks.
octecomonth	10−54 m	One septendecillionth of a month or 2.628 hexecoseconds.
heptecohour	10−51 h	One sexdecillionth of an hour or 3,600 heptecoseconds.
octecoquarter	10−54 q	One septendecillionth of a quarter or 7.884 hexecoseconds.
octecoannum	10−54 yr	One septendecillionth of a year or 31.536 hexecoseconds. Also called "octecoyear".
hexecominute	10−48 m	One quindecillionth of a minute or 60 hexecoseconds.
heptecoday	10−51 d	One sexdecillionth of a day or 24 heptecohours.
heptecoweek	10−51 w	One sexdecillionth of a week or seven heptecodays.
pentecosecond	10−45 s	One quattuordecillionth of a second.
heptecofortnight	10−51 fn	One sexdecillionth of a fortnight or two heptecoweeks.
heptecomonth	10−51 m	One sexdecillionth of a month or 2.628 pentecoseconds.
hexecohour	10−48 h	One quindecillionth of an hour or 3,600 hexecoseconds.
heptecoquarter	10−51 q	One sexdecillionth of a quarter or 7.884 pentecoseconds.
heptecoannum	10−51 yr	One sexdecillionth of a year or 31.536 pentecoseconds. Also called "heptecoyear".
Planck time	5.39×10−44 s	The amount of time light takes to travel one Planck length.
pentecominute	10−45 m	One quattuordecillionth of a minute or 60 pentecoseconds.
hexecoday	10−48 d	One quindecillionth of a day or 24 hexecohours.
hexecoweek	10−48 w	One quindecillionth of a week or seven hexecodays.
tetrecosecond	10−42 s	One tredecillionth of a second.
hexecofortnight	10−48 fn	One quindecillionth of a fortnight or two hexecoweeks.
hexecomonth	10−48 m	One quindecillionth of a month or 2.628 tetrecoseconds.
pentecohour	10−45 h	One quattuordecillionth of an hour or 3,600 pentecoseconds.
hexecoquarter	10−48 q	One quindecillionth of a quarter or 7.884 tetrecoseconds.
hexecoannum	10−48 yr	One quindecillionth of a year or 31.536 tetrecoseconds. Also called "hexecoyear".
tetrecominute	10−42 m	One tredecillionth of a minute or 60 tetrecoseconds.
pentecoday	10−45 d	One quattuordecillionth of a day or 24 pentecohours.
pentecoweek	10−45 w	One quattuordecillionth of a week or seven pentecodays.
trecosecond	10−39 s	One duodecillionth of a second.
pentecofortnight	10−45 fn	One quattuordecillionth of a fortnight or two pentecoweeks.
pentecomonth	10−45 m	One quattuordecillionth of a month or 2.628 trecoseconds.
tetrecohour	10−42 h	One tredecillionth of an hour or 3,600 tetrecoseconds.
pentecoquarter	10−45 q	One quattuordecillionth of a quarter or 7.884 trecoseconds.
pentecoannum	10−45 yr	One quattuordecillionth of a year or 31.536 trecoseconds. Also called "pentecoyear".
trecominute	10−39 m	One duodecillionth of a minute or 60 trecoseconds.
tetrecoday	10−42 d	One tredecillionth of a day or 24 tetrecohours.
tetrecoweek	10−42 w	One tredecillionth of a week or seven tetrecodays.
duecosecond	10−36 s	One undecillionth of a second.
tetrecofortnight	10−42 fn	One tredecillionth of a fortnight or two tetrecoweeks.
tetrecomonth	10−42 m	One tredecillionth of a month or 2.628 duecoseconds.
trecohour	10−39 h	One duodecillionth of an hour or 3,600 trecoseconds.
tetrecoquarter	10−42 q	One tredecillionth of a quarter or 7.884 duecoseconds.
tetrecoannum	10−42 yr	One tredecillionth of a year or 31.536 duecoseconds. Also called "tetrecoyear".
duecominute	10−36 m	One undecillionth of a minute or 60 duecoseconds.
trecoday	10−39 d	One duodecillionth of a day or 24 trecohours.
trecoweek	10−39 w	One duodecillionth of a week or seven trecodays.
mecosecond	10−33 s	One decillionth of a second.
trecofortnight	10−39 fn	One duodecillionth of a fortnight or two trecoweeks.
trecomonth	10−39 m	One duodecillionth of a month or 2.628 mecoseconds.
duecohour	10−36 h	One undecillionth of an hour or 3,600 duecoseconds.
trecoannum	10−39 yr	One duodecillionth of a year or 31.536 mecoseconds. Also called "trecoyear".
mecominute	10−33 m	One decillionth of a minute or 60 mecoseconds.
duecoday	10−36 d	One undecillionth of a day or 24 duecohours.
duecoweek	10−36 w	One undecillionth of a week or seven duecodays.
vecosecond	10−30 s	One nonillionth of a second.
duecofortnight	10−36 fn	One undecillionth of a fortnight or two duecoweeks.
duecomonth	10−36 m	One undecillionth of a month or 2.628 vecoseconds.
mecohour	10−33 h	One decillionth of an hour or 3,600 mecoseconds.
duecoquarter	10−36 q	One undecillionth of a quarter or 7.884 duecoseconds.
duecoannum	10−36 yr	One undecillionth of a year or 31.536 vecoseconds. Also called "duecoyear".
vecominute	10−30 m	One nonillionth of a minute or 60 vecoseconds.
mecoday	10−33 d	One decillionth of a day or 24 mecohours.
mecoweek	10−33 w	One decillionth of a week or seven mecodays.
xonosecond	10−27 s	One octillionth of a second.
mecofortnight	10−33 fn	One decillionth of a fortnight or two mecoweeks.
mecomonth	10−33 m	One decillionth of a month or 2.628 xonoseconds.
vecohour	10−30 h	One nonillionth of an hour or 3,600 vecoseconds.
mecoquarter	10−33 q	One decillionth of a quarter or 7.884 mecoseconds.
mecoannum	10−33 yr	One decillionth of a year or 31.536 xonoseconds. Also called "mecoyear".
xonominute	10−27 m	One octillionth of a minute or 60 xonoseconds.
vecoday	10−30 d	One nonillionth of a day or 24 vecohours.
vecoweek	10−30 w	One nonillionth of a week or seven vecodays.
yoctosecond	10−24 s	One septillionth of a second.
vecofortnight	10−30 fn	One nonillionth of a fortnight or two vecoweeks.
vecomonth	10−30 m	One nonillionth of a month or 2.628 yoctoseconds.
jiffy (physics)	3×10−24 s	The amount of time light takes to travel one fermi (about the size of a nucleon) in a vacuum.
xonohour	10−27 h	One octillionth of an hour or 3,600 xonoseconds.
vecoquarter	10−30 q	One nonillionth of a quarter or 7.884 vecoseconds.
vecoannum	10−30 yr	One nonillionth of a year or 31.536 yoctoseconds. Also called "vecoyear".
yoctominute	10−24 m	One septillionth of a minute or 60 yoctoseconds.
xonoday	10−27 d	One octillionth of a day or 24 xonohours.
xonoweek	10−27 w	One octillionth of a week or seven xonodays.
zeptosecond	10−21 s	One sextillionth of a second. Time measurement scale of the NIST strontium atomic clock. Smallest fragment of time currently measurable is 247 zeptoseconds.
xonofortnight	10−27 fn	One octillionth of a fortnight or two xonoweeks.
xonomonth	10−27 m	One octillionth of a month or 2.628 zeptoseconds.
yoctohour	10−24 h	One septillionth of an hour or 3,600 yoctoseconds.
xonoquarter	10−27 q	One octillionth of a quarter or 7.884 xonoseconds.
xonoannum	10−27 yr	One octillionth of a year or 31.536 zeptoseconds. Also called "xonoyear".
zeptominute	10−21 m	One sextillionth of a minute or 60 zeptoseconds.
yoctoday	10−24 d	One septillionth of a day or 24 yoctohours.
yoctoweek	10−24 w	One septillionth of a week or seven yoctodays.
attosecond	10−18 s	One quintillionth of a second.
yoctofortnight	10−24 fn	One septillionth of a fortnight or two yoctoweeks.
yoctomonth	10−24 m	One septillionth of a month or 2.628 attoseconds.
zeptohour	10−21 h	One sextillionth of an hour or 3,600 zeptoseconds.
yoctoquarter	10−24 q	One septillionth of a quarter or 7.884 yoctoseconds.
yoctoannum	10−24 yr	One septillionth of a year or 31.536 attoseconds. Also called "yoctoyear".
attominute	10−18 m	One quintillionth of a minute or 60 attoseconds.
zeptoday	10−21 d	One sextillionth of a day or 24 zeptohours.
zeptoweek	10−21 w	One sextillionth of a week or seven zeptodays.
femtosecond	10−15 s	One quadrillionth of a second. Pulse time on fastest lasers.
zeptofortnight	10−21 fn	One sextillionth of a fortnight or two zeptoweeks.
zeptomonth	10−21 m	One sextillionth of a month or 2.628 femtoseconds.
attohour	10−18 h	One quintillionth of an hour or 3,600 attoseconds.
zeptoquarter	10−21 q	One sextillionth of a quarter or 7.884 femtoseconds.
zeptoannum	10−21 yr	One sextillionth of a year or 31.536 femtoseconds. Also called "zeptoyear".
femtominute	10−15 m	One quadrillionth of a minute or 60 femtoseconds.
attoday	10−18 d	One quintillionth of a day or 24 attohours.
attoweek	10−18 w	One quintillionth of a week or seven attodays.
svedberg	10−13 s	Time unit used for sedimentation rates (usually of proteins).
picosecond	10−12 s	One trillionth of a second.
attofortnight	10−18 fn	One quintillionth of a fortnight or two attoweeks.
attomonth	10−18 m	One quintillionth of a month or 2.628 picoseconds.
femtohour	10−15 h	One quadrillionth of an hour or 3,600 femtoseconds.
attoquarter	10−18 q	One quintillionth of a quarter or 7.884 picoseconds.
attoannum	10−18 yr	One quintillionth of a year or 31.536 picoseconds. Also called "attoyear".
picominute	10−12 m	One trillionth of a minute or 60 picoseconds.
femtoday	10−15 d	One quadrillionth of a day or 24 femtohours.
femtoweek	10−15 w	One quadrillionth of a week or seven femtodays.
nanosecond	10−9 s	One billionth of a second. Time for molecules to fluoresce.
femtofortnight	10−15 fn	One quadrillionth of a fortnight or two femtoweeks.
femtomonth	10−15 m	One quadrillionth of a month or 2.628 nanoseconds.
picohour	10−12 h	One trillionth of an hour or 3,600 picoseconds.
femtoquarter	10−15 q	One quadrillionth of a quarter or 7.884 nanoseconds.
shake	10−8 s	10 nanoseconds, also a casual term for a short period of time.
femtoannum	10−15 yr	One quadrillionth of a year or 31.536 nanoseconds. Also called "femtoyear".
nanominute	10−9 m	One billionth of a minute or 60 nanoseconds.
picoday	10−12 d	One trillionth of a day or 24 picohours.
picoweek	10−12 w	One trillionth of a week or seven picodays.
microsecond	10−6 s	One millionth of a second. Symbol is µs
picofortnight	10−12 fn	One trillionth of a fortnight or two picoweeks.
picomonth	10−12 m	One trillionth of a month or 2.628 microseconds.
nanohour	10−9 h	One billionth of an hour or 3,600 nanoseconds.
picoquarter	10−9 q	One billionth of a quarter or 7.884 microseconds.
centimillisecond	10−5 s	One hundred thousandth of a second or one hundredth of a millisecond.
picoannum	10−12 yr	One trillionth of a year or 31.536 microseconds. Also called "picoyear".
microminute	10−6 m	One millionth of a minute or 60 microseconds.
nanoday	10−9 d	One billionth of a day or 24 nanohours.
nanoweek	10−9 w	One billionth of a week or seven nanodays.
decimillisecond	10−4 s	One ten-thousandth of a second or one tenth of a millisecond.
millisecond	10−3 s	One thousandth of a second. Shortest time unit used on stopwatches.
nanofortnight	10−9 fn	One billionth of a fortnight or two nanoweeks.
nanomonth	10−9 m	One billionth of a month or 2.628 milliseconds.
microhour	10−6 h	One millionth of an hour or 3,600 microseconds.
centimilliminute	10−5 m	One hundred thousandth of a minute or 600 microseconds.
decimilliminute	10−4 m	One ten-thousandth of a minute or 6 milliseconds.
nanoquarter	10−9 q	One billionth of a quarter or 7.884 milliseconds.
centisecond	10−2 s	One hundredth of a second.
jiffy (electronics)	1/60 s or 1/50 s	Used to measure the time between alternating power cycles. Also a casual term for a short period of time.
nanoannum	10−9 yr	One billionth of a year or 31.536 milliseconds. Also called "nanoyear".
centimillihour	10−5 h	One hundred thousandth of an hour or 36 milliseconds.
milliminute	10−3 m	One thousandth of a minute or 60 milliseconds.
microday	10−6 d	One millionth of a day or 24 microhours.
decisecond	10−1 s	One tenth of a second.
quadrisecond / semisemisecond / quarter second	0.25 s	One quarter of a second or 250 milliseconds.
decimillihour	10−4 h	One ten-thousandth of an hour or 360 milliseconds.
semisecond / half second	0.5 s	One half of a second or 500 milliseconds.
centiminute	10−2 m	One hundredth of a minute or 600 milliseconds.
microweek	10−6 w	One millionth of a week or seven microdays.
centimilliday	10−5 d	One hundred thousandth of a day or 864 milliseconds.
second	1 s	SI Base unit.
microfortnight	10−6 fn	One millionth of a fortnight or two microweeks.
micromonth	10−6 m	One millionth of a month or 2.628 seconds.
millihour	10−3 h	One thousandth of an hour or 3.6 seconds.
deciminute	10−1 m	One tenth of a minute or six seconds.
centimilliweek	10−5 w	One hundred thousandth of a week or 70 microdays.
microquarter	10−6 q	One millionth of a quarter or 7.884 seconds.
decimilliday	10−4 d	One ten-thousandth of a day or 8.64 seconds.
decasecond	10 s
centimillifortnight	10−5 fn	One hundred thousandth of a fortnight or two centimilliweeks.
centimillimonth	10−5 m	One hundred thousandth of a month or 26.28 seconds.
microannum	10−6 yr	One millionth of a year or 31.536 seconds. Also called "microyear".
centihour	10−2 h	One hundredth of an hour or 36 seconds.
minute	60 s
decimilliweek	10−4 w	One ten-thousandth of a week or 700 microdays.
centimilliquarter	10−5 q	One hundred thousandth of a quarter or 78.84 seconds.
milliday	10−3 d	Also marketed as a ".beat" by the Swatch corporation; Milliday is a more accurate name.
moment	1/40 solar hour (90 s on average)	Medieval unit of time used by astronomers to compute astronomical movements, length varies with the season.
hectosecond	100 s	1 minute and 40 seconds.
decimillifortnight	10−4 fn	One ten-thousandth of a fortnight or two decimilliweeks.
decimillimonth	10−4 m	One ten-thousandth of a month or 262.8 seconds.
centimilliannum	10−5 yr	One hundred thousandth of a year or 315.36 seconds. Also called "centimilliyear".
decihour	10−1 h	One tenth of an hour or six minutes or 360 seconds.
decaminute	10 m	Ten minutes or 600 seconds.
milliweek	10−3 w	One thousandth of a week or seven millidays.
decimilliquarter	10−4 q	One ten-thousandth of a quarter or 788.4 seconds.
ke	10−2 s	14 minutes and 24 seconds. Also called "centiday".
kilosecond	1000 s	16 minutes and 40 seconds.
millifortnight	10−3 fn	One thousandth of a fortnight or two milliweeks.
millimonth	10−3 m	One thousandth of a month or 2,628 seconds.
decimilliannum	10−4 yr	One ten-thousandth of a year or 3,153.6 seconds. Also called "decimilliyear".
hour	60 min
hectominute	100 m	100 minutes or 6,000 seconds.
centiweek	10−2 w	One hundredth of a week or 70 millidays.
milliquarter	10−3 q	One thousandth of a quarter or 7,884 seconds.
deciday	10−1 d	One tenth of a day or 2.4 hours.
decakilosecond	104 s	Ten thousand seconds or ten kiloseconds.
centifortnight	10−2 fn	One hundredth of a fortnight or two centiweeks.
centimonth	10−2 m	One hundredth of a month or 26,280 seconds.
milliannum	10−3 yr	One thousandth of a year or 31,536 seconds. Also called "milliyear".
decahour	10 h	Ten hours or 600 minutes or 36,000 seconds.
kilominute	1000 m	1,000 minutes or 60,000 seconds.
deciweek	10−1 w	One tenth of a week or 700 millidays.
centiquarter	10−2 q	One hundredth of a quarter or 78,840 seconds.
day	24 h	Longest unit used on stopwatches and countdowns.
hectokilosecond	105 s	One hundred thousand seconds or one hundred kiloseconds.
decifortnight	10−1 fn	One tenth of a fortnight or two deciweeks.
decimonth	10−1 m	One tenth of a month or 262,800 seconds.
centiannum	10−2 yr	One hundredth of a year or 315,360 seconds. Also called "centiyear".
hectohour	100 h	100 hours or 6,000 minutes or 360,000 seconds.
decakilominute	104 m	10,000 minutes or 600,000 seconds.
deciquarter	10−1 q	One tenth of a quarter or 788,400 seconds.
week	7 d	Also called "sennight".
decaday	10 d	Ten days or 240 hours.
megasecond	106 s	277.777778333333 hours or about 1 week and 4.6 days.
fortnight	2 weeks	14 days.
lunar month	27 d 4 h 48 min – 29 d 12 h	Various definitions of lunar month exist.
month	28-31 days	Occasionally calculated as 30 days.
deciannum	10−1 yr	One tenth of a year or 3,153,600 seconds. Also called "deciyear".
kilohour	1000 h	1,000 hours or 60,000 minutes or 3,600,000 seconds.
hectokilominute	105 m	100,000 minutes or 6,000,000 seconds.
decaweek	10 w	Ten weeks or 70 days.
quarter and season	3 mo
hectoday	100 d	100 days or 2,400 hours.
quadrimester	4 mo
semester	18 weeks	A division of the academic year. Literally "six months", also used in this sense.
decafortnight	10 fn	Ten fortnights or 20 weeks.
half year	6 mo
decamonth	10 m	Ten months or 26,280,000 seconds.
lunar year	354.37 days
year	12 mo	365 or 366 d. Also called "annum".
common year	365 d	52 weeks and 1 day.
tropical year	365 d 5 h 48 min 45.216 s	Average.
Gregorian year	365 d 5 h 49 min 12 s	Average.
sidereal year	365 d 6 h 9 min 9.7635456 s
leap year	366 d	52 weeks and 2 d
decakilohour	104 h	About 416.666666 days.
megaminute	106 m	About 694.444444 days.
hectoweek	100 w	100 weeks or 700 days.
biennium	2 yr
decaquarter	10 q	Ten quarters or 30 months.
kiloday	1000 d	About 2.739726 years.
triennium	3 yr
hectofortnight	100 fn	100 fortnights or 200 weeks.
quadrennium	4 yr
olympiad	4 yr
lustrum	5 yr
hectomonth	100 m	About 8.333333 years.
decade	10 yr	Also called "decayear" or "decaannum".
hectokilohour	105 h	About 11.415525 years.
indiction	15 yr
kiloweek	1000 w	About 19.178082 years.
hectoquarter	100 q	About 25 years.
decakiloday	104 d	About 27.39726 years.
gigasecond	109 s	16,666,666.6667 minutes or about 31.7 years.
kilofortnight	1000 fn	About 38.356164 years.
jubilee	50 yr
kilomonth	1000 m	About 83.333333 years.
century	100 yr	Also called "hectoyear" or "hectoannum".
megahour	106 h	About 114.155251 years.
decakiloweek	104 w	About 191.78082 years.
kiloquarter	1000 q	About 250 years.
hectokiloday	105 d	About 273.9726 years.
decakilofortnight	104 fn	About 383.56164 years.
decakilomonth	104 m	About 833.33333 years.
millennium	1000 yr	Also called "kiloyear" or "kiloannum".
gigaminute	109 m	About 1,902.587519 years.
hectokiloweek	105 w	About 1,917.8082 years.
decakiloquarter	104 q	About 2,500 years.
megaday	106 d	About 2,739.726 years.
hectokilofortnight	105 fn	About 3,835.6164 years.
hectokilomonth	105 m	About 8,333.3333 years.
decakiloannum	104 yr	Ten thousand years or ten millenniums. Also called "decakiloyear".
megaweek	106 w	About 19,178.082 years.
hectokiloquarter	105 q	About 25,000 years.
terasecond	1012 s	About 31,709 years.
megafortnight	106 fn	About 38,356.164 years.
megamonth	106 m	About 83,333.333 years.
hectokiloannum	105 yr	One hundred thousand years or one hundred millenniums. Also called "hectokiloyear".
gigahour	109 h	About 114,155.251 years.
megaquarter	106 q	About 250,000 years.
megaannum	106 yr	Also called "megayear" 1,000 millennia (plural of millennium), or 1 million years.
teraminute	1012 m	About 1,902,587.519 years.
gigaday	109 d	About 2,739,726 years.
gigaweek	109 w	About 19,178,082 years.
petasecond	1015 s	About 31,709,791 years.
gigafortnight	109 fn	About 38,356,164 years.
gigamonth	109 m	About 83,333,333 years.
terahour	1012 h	About 114,155,251 years.
galactic year	2.3×108 yr	The amount of time it takes the Solar System to orbit the center of the Milky Way Galaxy one time. Around 230,000,000 years.
gigaquarter	109 q	About 250,000,000 years.
cosmological decade	varies	10 times the length of the previous cosmological decade, with CÐ 1 beginning either 10 seconds or 10 years after the Big Bang, depending on the definition.
gigaannum	109 yr	Also refers to an indefinite period of time, otherwise is 1,000,000,000 years. Also called "gigayear".
petaminute	1012 m	About 1,902,587,519 years.
teraday	1012 d	About 2,739,726,000 years.
teraweek	1012 w	About 19,178,082,000 years.
exasecond	1018 s	About 31,709,791,983 years.
terafortnight	1012 fn	About 38,356,164,000 years.
teramonth	1012 m	About 83,333,333,000 years.
petahour	1015 h	About 114,155,251,000 years.
teraquarter	1012 q	About 250,000,000,000 years.
teraannum	1012 yr	About 1,000,000,000,000 years. Also called "terayear".
examinute	1018 m	About 1,902,587,519,000 years.
petaday	1015 d	About 2,739,726,000,000 years.
petaweek	1015 w	About 1.917808E+13 years.
zettasecond	1021 s	About 31,709,791,983,764 years.
petafortnight	1015 fn	About 3.835616E+13 years.
petamonth	1015 m	About 8.333333E+13 years.
exahour	1018 h	About 114,155,251,000,000 years.
petaquarter	1015 q	About 2.5E+14 years.
petaannum	1015 yr	About 1,000,000,000,000,000 years. Also called "petayear".
zettaminute	1021 m	About 1.902587E+15 years.
exaday	1018 d	About 2.739726E+15 years.
exaweek	1018 w	About 1.917808E+16 years.
yottasecond	1024 s	About 31,709,791,983,764,584 years.
exafortnight	1018 fn	About 3.835616E+16 years.
examonth	1018 m	About 8.333333E+16 years.
zettahour	1021 h	About 1.141552E+17 years.
exaquarter	1018 q	About 2.5E+17 years.
exaannum	1018 yr	About 1,000,000,000,000,000,000 years. Also called "exayear".
yottaminute	1024 m	About 1.902587E+18 years.
zettaday	1021 d	About 2.739726E+18 years.
zettaweek	1021 w	About 1.917808E+19 years.
xennasecond	1027 s	About 3.1709791983765E+19 years.
zettafortnight	1021 fn	About 3.835616E+19 years.
zettamonth	1021 m	About 8.333333E+19 years.
yottahour	1024 h	About 1.141552E+20 years.
zettaquarter	1021 q	About 2.5E+20 years.
zettaannum	1021 yr	About 1E+21 years. Also called "zettayear".
xennaminute	1027 m	About 1.902587E+21 years.
yottaday	1024 d	About 2.739726E+21 years.
yottaweek	1024 w	About 1.917808E+22 years.
dakasecond	1030 s	About 3.1709791983765E+22 years.
yottafortnight	1024 fn	About 3.835616E+22 years.
yottamonth	1024 m	About 8.333333E+22 years.
xennahour	1027 h	About 1.141552E+23 years.
yottaquarter	1024 q	About 2.5E+23 years.
yottaannum	1024 yr	About 1E+24 years. Also called "yottayear".
dakaminute	1030 m	About 1.902587E+24 years.
xennaday	1027 d	About 2.739726E+24 years.
xennaweek	1027 w	About 1.917808E+25 years.
hendasecond	1033 s	About 3.1709791983765E+25 years.
xennafortnight	1027 fn	About 3.835616E+25 years.
xennamonth	1027 m	About 8.333333E+25 years.
dakahour	1030 h	About 1.141552E+26 years.
xennaquarter	1027 q	About 2.5E+26 years.
xennaannum	1027 yr	About 1E+27 years. Also called "xennayear".
hendaminute	1033 m	About 1.902587E+27 years.
dakaday	1030 d	About 2.739726E+27 years.
dakaweek	1030 w	About 1.917808E+28 years.
dokasecond	1036 s	About 3.1709791983765E+28 years.
dakafortnight	1030 fn	About 3.835616E+28 years.
dakamonth	1030 m	About 8.333333E+28 years.
hendahour	1033 h	About 1.141552E+29 years.
dakaquarter	1030 q	About 2.5E+29 years.
dakaannum	1030 yr	About 1E+30 years. Also called "dakayear".
dokaminute	1036 m	About 1.902587E+30 years.
hendaday	1033 d	About 2.739726E+30 years.
hendaweek	1033 w	About 1.917808E+31 years.
tradakasecond	1039 s	About 3.1709791983765E+31 years.
hendafortnight	1033 fn	About 3.835616E+31 years.
hendamonth	1033 m	About 8.333333E+31 years.
dokahour	1036 h	About 1.141552E+32 years.
hendaquarter	1033 q	About 2.5E+32 years.
hendaannum	1033 yr	About 1E+33 years. Also called "hendayear".
tradakaminute	1039 m	About 1.902587E+33 years.
dokaday	1036 d	About 2.739726E+33 years.
dokaweek	1036 w	About 1.917808E+34 years.
tedakasecond	1042 s	About 3.1709791983765E+34 years.
dokafortnight	1036 fn	About 3.835616E+34 years.
dokamonth	1036 m	About 8.333333E+34 years.
tradakahour	1039 h	About 1.141552E+35 years.
dokaquarter	1036 q	About 2.5E+35 years.
dokaannum	1036 yr	About 1E+36 years. Also called "dokayear".
tedakaminute	1042 m	About 1.902587E+36 years.
tradakaday	1039 d	About 2.739726E+36 years.
tradakaweek	1039 w	About 1.917808E+37 years.
pedakasecond	1045 s	About 3.1709791983765E+37 years.
tradakafortnight	1039 fn	About 3.835616E+37 years.
tradakamonth	1039 m	About 8.333333E+37 years.
tedakahour	1042 h	About 1.141552E+38 years.
tradakaquarter	1039 q	About 2.5E+38 years.
tradakaannum	1039 yr	About 1E+39 years. Also called "tradakayear".
pedakaminute	1045 m	About 1.902587E+39 years.
tedakaday	1042 d	About 2.739726E+39 years.
tedakaweek	1042 w	About 1.917808E+40 years.
exdakasecond	1048 s	About 3.1709791983765E+40 years.
tedakafortnight	1042 fn	About 3.835616E+40 years.
tedakamonth	1042 m	About 8.333333E+40 years.
pedakahour	1045 h	About 1.141552E+41 years.
tedakaquarter	1042 q	About 2.5E+41 years.
tedakaannum	1042 yr	About 1E+42 years. Also called "tedakayear".
exdakaminute	1048 m	About 1.902587E+42 years.
pedakaday	1045 d	About 2.739726E+42 years.
pedakaweek	1045 w	About 1.917808E+43 years.
zedakasecond	1051 s	About 3.1709791983765E+43 years.
pedakafortnight	1045 fn	About 3.835616E+43 years.
pedakamonth	1045 m	About 8.333333E+43 years.
exdakahour	1048 h	About 1.141552E+44 years.
pedakaquarter	1045 q	About 2.5E+44 years.
pedakaannum	1045 yr	About 1E+45 years. Also called "pedakayear".
zedakaminute	1051 m	About 1.902587E+45 years.
exdakaday	1048 d	About 2.739726E+45 years.
exdakaweek	1048 w	About 1.917808E+46 years.
yodakasecond	1054 s	About 3.1709791983765E+46 years.
exdakafortnight	1048 fn	About 3.835616E+46 years.
exdakamonth	1048 m	About 8.333333E+46 years.
zedakahour	1051 h	About 1.141552E+47 years.
exdakaquarter	1048 q	About 2.5E+47 years.
exdakaannum	1048 yr	About 1E+48 years. Also called "exdakayear".
yodakaminute	1054 m	About 1.902587E+48 years.
zedakaday	1051 d	About 2.739726E+48 years.
zedakaweek	1051 w	About 1.917808E+49 years.
nedakasecond	1057 s	About 3.1709791983765E+49 years.
zedakafortnight	1051 fn	About 3.835616E+49 years.
zedakamonth	1051 m	About 8.333333E+49 years.
yodakahour	1054 h	About 1.141552E+50 years.
zedakaquarter	1051 q	About 2.5E+50 years.
zedakaannum	1051 yr	About 1E+51 years. Also called "zedakayear".
nedakaminute	1057 m	About 1.902587E+51 years.
yodakaday	1054 d	About 2.739726E+51 years.
yodakaweek	1054 w	About 1.917808E+52 years.
ikasecond	1060 s	About 3.1709791983765E+52 years.
yodakafortnight	1054 fn	About 3.835616E+52 years.
yodakamonth	1054 m	About 8.333333E+52 years.
nedakahour	1057 h	About 1.141552E+53 years.
yodakaquarter	1054 q	About 2.5E+53 years.
yodakaannum	1054 yr	About 1E+54 years. Also called "yodakayear".
ikaminute	1060 m	About 1.902587E+54 years.
nedakaday	1057 d	About 2.739726E+54 years.
nedakaweek	1057 w	About 1.917808E+55 years.
nedakafortnight	1057 fn	About 3.835616E+55 years.
nedakamonth	1057 m	About 8.333333E+55 years.
ikahour	1060 h	About 1.141552E+56 years.
nedakaquarter	1057 q	About 2.5E+56 years.
nedakaannum	1057 yr	About 1E+57 years. Also called "nedakayear".
ikaday	1060 d	About 2.739726E+57 years.
ikaweek	1060 w	About 1.917808E+58 years.
ikafortnight	1060 fn	About 3.835616E+58 years.
ikamonth	1060 m	About 8.333333E+58 years.
ikaquarter	1060 q	About 2.5E+59 years.
ikaannum	1060 yr	About 1E+60 years. Also called "ikayear". The biggest unit of time.