### Convert Seconds to:

- Seconds to
**Callippic Cycles**- 1 Callippic cycles is exactly equal to 441 hollow months (29 days) plus 499 full months (30 days). This is 76 Julian years (365.25 days per Julian year).

- Seconds to
**Centiseconds**- A centisecond is exactly 0.01 seconds. One hundredth of a second.

- Seconds to
**Centuries**- 100 yr

- Seconds to
**Days**- 1 day is 24 hours. The amount of time required for one full rotation of the Earth from the perspective of the Sun. More specifically this unit is known as a solar day. 1 Solar day = 86 400 seconds (SI base unit). 1 d = 86400 s.

- Seconds to
**Days (sidereal)**- The amount of time needed for the earth to rotate once around its axis as viewed from a distance star. Approximately 23 hours, 56 minutes, and 4.1 seconds. 86,164.1 seconds. See
*Days*for 24 hour solar day.

- The amount of time needed for the earth to rotate once around its axis as viewed from a distance star. Approximately 23 hours, 56 minutes, and 4.1 seconds. 86,164.1 seconds. See
- Seconds to
**Decades**- 10 yr

- Seconds to
**Decaseconds**- A decasecond is exactly 10 seconds. 1 das = 10 s. Ten seconds.

- Seconds to
**Deciseconds**- A decisecond is exactly 0.1 seconds. One tenth of a second.

- Seconds to
**Femtoseconds**- A femtosecond is exactly 1 x 10
^{-15}seconds. A quadrillionth of a second.

- A femtosecond is exactly 1 x 10
- Seconds to
**Fortnights**- 2 Weeks.

- Seconds to
**Gigaseconds**- A gigasecond is exactly 1,000,000,000 seconds. A billion seconds.

- Seconds to
**Hectoseconds**- A decasecond is exactly 100 seconds. 1 hs = 100 s. One hundred seconds.

- Seconds to
**Heleks**- 1 Helek is equal to 1/1080 hours.

- Seconds to
**Hipparchic Cycles**- 1 Happarchic cycles is one day less than 4 Callippic cycles. 304 Julian years (365.25 days) minutes 1 day.

- Seconds to
**Hours**- 60 Minutes. In SI units 3600 seconds.

- Seconds to
**Jiffies**- 1/60
^{th}Seconds.

- 1/60
- Seconds to
**Jiffies (alternative)**- 1/100
^{th}Seconds.

- 1/100
- Seconds to
**Ke**- 1 ke is 1/4 of an hour. 900 seconds.

- Seconds to
**Ke (traditional)**- 1 ke is 1/100
^{th}of a day.

- 1 ke is 1/100
- Seconds to
**Kiloseconds**- A kilosecond is exactly 1,000 seconds. A thousand seconds.

- Seconds to
**Lustres**- 1 Lustre is equal to 5 years of 365 days each.

- Seconds to
**Megaseconds**- A megasecond is exactly 1,000,000 seconds. A million seconds.

- Seconds to
**Metonic Cycles**- 1 Metonic cycle is equal to 110 hollow months (29 days) plus 125 full months (30 days). The equates to 6940 days or approximately 19 years.

- Seconds to
**Microfortnights**- 1 Microfortnight is equal to 14 / 1000000 days or 1.2096 seconds. It is intended to be used only for humour or obfuscation. 1 µfn = 1.2096 s.

- Seconds to
**Microseconds**- A microsecond is exactly 1 x 10
^{-6}seconds. 1 µs = 0.000,001 s. One millionth of a second.

- A microsecond is exactly 1 x 10
- Seconds to
**Millennia**- 1 Millennium is equal to 1,000 years. In this calculation Julian years are being used (365.25 days).

- Seconds to
**Millidays**- 1/1000 Days. In SI units 86.4 seconds.

- Seconds to
**Millifortnights**- 1 Millifortnight is equal to 14 / 1000 days or 1209.6 seconds. It is intended to be used only for humour or obfuscation. 1 mfn = 1209.6 s.

- Seconds to
**Milliseconds**- A millisecond is exactly 1 x 10
^{-3}seconds. 1 ms = 0.001 s.

- A millisecond is exactly 1 x 10
- Seconds to
**Minutes**- 60 Seconds.

- Seconds to
**Moments**- 90 Seconds.

- Seconds to
**Months**- 30 Days, for the purposes of calculation.

- Seconds to
**Months (hollow)**- 1 Hollow months is 29 days.

- Seconds to
**Nanofortnights**- 1 Nanofortnight is equal to 14 / 1000000000 days or 0.0012096 seconds. It is intended to be used only for humour or obfuscation. 1 nfn = 0.0012096 s.

- Seconds to
**Nanoseconds**- A nanosecond is exactly 1 x 10
^{-9}seconds. 1 ns = 0.000,000,001 s.

- A nanosecond is exactly 1 x 10
- Seconds to
**Octaeterides**- 1 Ocaeteris is roughly 2922 days.

- Seconds to
**Picoseconds**- A picosecond is exactly 1 x 10
^{-12}seconds. 1 ps = 0.000,000,000,001 s.

- A picosecond is exactly 1 x 10
- Seconds to
**Shakes**- 1 Shake is equal to 10 nanoseconds.

- Seconds to
**Sigmas**- 1 Sigma is equal to 1 microsecond.

- Seconds to
**Sols**- 1 Sol is a martian solar day, one full rotation of Mars from the perspective of the Sun. Approximately 88775.24409 seconds or 24 hours, 39 minutes, 35.24409 seconds; slightly variable due to orbital eccentricity. 1 sol = 88775.24409 s.

- Seconds to
**Sothic Cycles**- 1 Sothic cycle is equal to 1461 years of 365 days. Also 1460 Julian years (365.25 days).

- Seconds to
**Svedbergs**- 1 Svedberg is equal to 10
^{-8}seconds.

- 1 Svedberg is equal to 10
- Seconds to
**Teraseconds**- A terasecond is exactly 1,000,000,000,000 seconds. A trillion seconds.

- Seconds to
**Weeks**- 1 Week is equal to 7 days. In SI units 1 week is 604,800 seconds.

- Seconds to
**Years**- 1 Year (Gregorian) contains 365.2425 days, in SI units it is equal to 31,556,952 seconds.

- Seconds to
**Years (Julian)**- 1 Year (Julian) contains 365.25 days, in SI units it is equal to 31,557,600 seconds.

- Seconds to
**Years (sidereal)**- 1 Year (sidereal) is exactly equal to the time taken for the Sun to return to the same position with respect to the star of the celestial sphere. In SI units the is approximately 31,446,925 seconds.

- Seconds to
**Years (tropical)**- 1 Year (tropical) is the time taken for the Sun to return to the same position in the cycle of seasons. In Si units the is 31,556,925 seconds.