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AbsoluteTime

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AbsoluteTime[]
gives the total number of seconds since the beginning of January 1, 1900, in your time zone.

AbsoluteTime[{y, m, d, h, m, s}]
gives the absolute time specification corresponding to a date list.

AbsoluteTime["string"]
gives the absolute time specification corresponding to a date string.

AbsoluteTime[{"string", {"e₁", "e₂", ...}}]
takes the date string to contain the elements "e_i".

MORE INFORMATION

AbsoluteTime[] uses whatever date and time have been set on your computer system. It performs no corrections for time zones, daylight saving time, etc.

AbsoluteTime[TimeZone -> z] gives the date and time inferred for time zone z by assuming that your computer is set for the time zone specified by $TimeZone. »

AbsoluteTime[] is always accurate down to a granularity of $TimeUnit seconds, but on many systems is much more accurate.

Shorter lists can be used in AbsoluteTime[{y, m, ...}]: {y} is equivalent to {y, 1, 1, 0, 0, 0}, {y, m} to {y, m, 1, 0, 0, 0}, etc.

Values of m, d, h, m, s outside their normal ranges are appropriately reduced. Non-integer values of d, h, m, s can also be used. »

Basic Examples (4)

Absolute time in seconds since January 1, 1900:

Convert a date list or elided date list:

Convert from a date string to absolute time:

Specify date elements for interpreting a string:

Generalizations & Extensions (1)

Properties & Relations (3)

DateList DateString SessionTime TimeUsed Clock AbsoluteTiming Timing TimeZone $TimeUnit DatePlus DateDifference

Date and Time Functions

Global System Information

Date & Time

External Operations

Locale & Internationalization

Mathematica Session Information

Time Measurement & Optimization

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