(require 'posix-time)
     

— Data Type: Calendar-Time

is a datatype encapsulating time.

— Data Type: Coordinated Universal Time

(abbreviated UTC) is a vector of integers representing time:

0. seconds (0 - 61)
1. minutes (0 - 59)
2. hours since midnight (0 - 23)
3. day of month (1 - 31)
4. month (0 - 11). Note difference from decode-universal-time.
5. the number of years since 1900. Note difference from decode-universal-time.
6. day of week (0 - 6)
7. day of year (0 - 365)
8. 1 for daylight savings, 0 for regular time

— Function: gmtime caltime

Converts the calendar time caltime to UTC and returns it.

— Function: localtime caltime tz

Returns caltime converted to UTC relative to timezone tz.

— Function: localtime caltime

converts the calendar time caltime to a vector of integers expressed relative to the user's time zone. localtime sets the variable *timezone* with the difference between Coordinated Universal Time (UTC) and local standard time in seconds (see tzset).

— Function: gmktime univtime

Converts a vector of integers in GMT Coordinated Universal Time (UTC) format to a calendar time.

— Function: mktime univtime

Converts a vector of integers in local Coordinated Universal Time (UTC) format to a calendar time.

— Function: mktime univtime tz

Converts a vector of integers in Coordinated Universal Time (UTC) format (relative to time-zone tz) to calendar time.

— Function: asctime univtime

Converts the vector of integers caltime in Coordinated Universal Time (UTC) format into a string of the form "Wed Jun 30 21:49:08 1993".

— Function: gtime caltime
— Function: ctime caltime
— Function: ctime caltime tz

Equivalent to (asctime (gmtime caltime)), (asctime (localtime caltime)), and (asctime (localtime caltime tz)), respectively.