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

How do I find the week-of-the-year/day-of-the-year?

How can I compare two date strings?

How can I take a string and turn it into epoch seconds?

How can I find the Julian Day?

Does Perl have a year 2000 problem?

How do I set the time and date?

See Also

(Perl builtin function) gmtime EXPR Converts a time as returned by the time function to a 9-element array with the time localized for the standard Greenwich time zone.

(Perl builtin function) localtime EXPR Converts a time as returned by the time function to a 9-element array with the time analyzed for the local time zone.

(Perl builtin function) time Returns the number of non-leap seconds since whatever time the system considers to be the epoch

p5-Date-Manip-5.39 perl5 module containing date manipulation routines

p5-Time-100.010301 a collection of functions to convert and use time variables in perl5

p5-TimeDate-1.10 perl5 module containing a better/faster date parser for absolute dates

BSD::Time - Implements the gettimeofday() and settimeofday() functions. [Perl] {oss}

Date::Convert - Converts between Gregorian, Julian, Hebrew, and astronomical date formats. [Perl] {oss}

Date::GetDate - Get the current date, accounting for time zones. [Perl] {oss}

Date::DateCalc - Calculates the difference between two dates, or a specified offset from a single date. [Perl] {oss}

Date::Format - Date formatting routines that convert dates into ASCII strings. In the Date/TimeDate package. [Perl] {oss}

Date::Language - Converts dates into different languages. Date::Language is part of the Date/TimeDate package. [Perl] {oss}

Date::Parse - Converts date strings into Unix time values. (A Unix time value is the number of seconds since January 1, 1970.) [Perl] {oss}

The Time-Modules Bundle - Contains Time::CTime, Time::JulianDay, Time::ParseDate, Time::Timezone, and Time::DaysInMonth. See their individual listings for further details. [Perl] {oss}

The TimeDate Bundle - Contains Date::Format, Date::Language, Date::Parse, and Time::Zone. See their individual listings for further details. [Perl] {oss}

Time::CTime - Format times in many different ways. Part of the Time-modules bundle. Also see the POSIX module. [Perl] {oss}

Time::DaysInMonth - Determine the number of days in a month. It handles leap years, of course. Part of the Time-modules bundles. [Perl] {oss}

Time::JulianDay - Convert dates to/from the Julian calendar, which is the calendar most Western civiliations used prior to our current calendar, the Gregorian. In the Time-modules bundle. [Perl] {oss}

Time::ParseDate - Reverses strftime and also understands relative times. In the Time-modules bundle. [Perl] {oss}

Time::Period - Provides inPeriod(), which determines whether a certain point in time falls within a give period. [Perl] {oss}

Time::Timezone - Manipulates time zones. In the Time-modules bundle. Also see Time::Zone below. [Perl] {oss}

Time::HiRes - Finer granularity time, sleep, and alarm: implements usleep(), ularam(), and gettimeofday() in Perl. [Perl] {oss}

Net::Time - Obtains the time from a remote machine. Part of the libnet bundle. [Perl] {oss}

Time::Zone - Manipulates time zones. In the TimeDate bundle. Also see Time::Timezone above. [Perl] {oss}

Other Libraries, Functions, and Components