calendar(1) - reminder service {oss}

cal(1) - displays a calendar {oss}

date(1) - display or set date and time {oss}

zdump(8) - time zone dumper {oss}

zic(8) - time zone compiler {oss}

rdate(8) - set the system's date from a remote host {oss}

timed(8) - time server daemon {oss}

timedc(8) - timed control program {oss}

Applications and Utilities

asctime ctime difftime gmtime localtime mktime (3) - convert date and time to ASCII {oss}

ftime (3) - get date and time {oss}

time (3) - get time of day {oss}

time2posix posix2time (3) - convert seconds since the Epoch {oss}

timezone (3) - return the timezone abbreviation {oss}

tzset (3) - initialize time conversion information {oss}

adjtime (2) - correct the time to allow synchronization of the system clock {oss}

clock_gettime clock_settime clock_getres (2) - get/set/calibrate date and time {oss}

gettimeofday settimeofday (2) - get/set date and time {oss}

Libraries and Functions

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Up to Hardware Access - Gateway topic to hardware and real-time related processing routines.