Terasecond and longer

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A terasecond (symbol: Ts) is one trillion seconds. That is about 31,700 years. It can be written as 1012 seconds.

Here is a list of time spans longer than 1 terasecond:

  • 1015 seconds = 1 petasecond = 31.7 million years
  • 1018 seconds = 1 exasecond = 31.7 billion years
  • 1021 seconds = 1 zettasecond = 31.7 trillion years
  • 1024 seconds = 1 yottasecond = 31.7 quadrillion years

Teraseconds[change | edit source]

Here are some examples of events that take this long:

Petaseconds[change | edit source]

Exaseconds[change | edit source]

  • (1.4 ± 0.4) × 1017 years – vanadium-50
  • (1.9 ± 0.2) × 1019 years – bismuth-209
  • (3.1 ± 0.4) × 1019 years – cadmium-116
  • (2.2 ± 0.3) × 1024 years – tellurium-128