- chronicity - Chronicity is a Common Lisp library for parsing natural language date and time strings
- cl-covid19 - The cl-covid19 system provides APIs for exploring and reviewing COVID-19
- cl-date-time-parser - Parse date-time-string, and return (as multiple values) universal-time and fraction
- cl-period - cl-period allows one to express and check time periods in a terse but readable way
- cl-strftime - Common Lisp compiler for the strftime language
- CLLIB - CLLIB is a varied collection of Common lisp tools and routines in CLOCC
- cluck - Cluck is a Common Lisp library written by Kevin Rosenberg for assisting in configuring timers on microcontroller chips
- Date-Calc - Date-Calc aims to be a port of the Perl Date::Calc time-handling library
- de.setf.utility - de setf utility is a collection of Common Lisp utilities functions and several purpose-specific libraries
- jd-time-utils - jd-time-utils is a Common Lisp library for computing time and parsing time strings outside the Lisp UT range of 1900-01-01 onward, using Julian Days internally
- local-time - local-time is a library for manipulating date and time information in a semi-standard manner
- princ-ut-interval - princ-ut-interval prints time durations in human readable format
- quux-time - QUUX-TIME is a library to deal with efficient representation of time
- rfc3339-timestamp - A library to decode and encode timestamps according to RFC 3339
- rw-ut - rw-ut reads and writes lisp universal times as ISO-8601 strings
- simple-date-time - Date and time library for Common Lisp
- trivial-timeout - OS- and implementation-independent access to timeouts
- vseloved-date-utils - date-utils is a library for handling dates in a PLIST format, like (:year 2009 :day 1 :month 3)
- Ystok-Local-Time - Ystok-Local-Time is a library for for representing and handling time zones, dates, and timestamps
time
Lisp libraries for working with times, dates, formatting, calendars, ...