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Time::Duration::Parse::AsHash - Parse string that represents time duration


version 0.10.6


 use Time::Duration::Parse::AsHash;

 my $res = parse_duration("2 minutes and 3 seconds");    # => {minutes=>2, seconds=>3}
    $res = parse_duration("2m3.2s", 1); # => 123.2

    $res = parse_duration("01:02:03", 1); # => 3723


Time::Duration::Parse::AsHash is like Time::Duration::Parse except:

  • By default it returns a hashref of parsed duration elements instead of number of seconds

    There are some circumstances when you want this, e.g. when feeding into DateTime::Duration and you want to count for leap seconds.

    To return number of seconds like Time::Duration::Parse, pass a true value as the second argument.

  • By default seconds are not rounded

    For example: "0.1s" or 100ms will return result { seconds => 0.1 }, and "2.3s" will return { seconds => 2.3 }.

    Also, <01:02:03> being recognized as 1h2min3s, 01:02:03.4567 will also be recognized as 1h2min3.4567s.

  • It recognizes more duration units

    milliseconds (ms), which will be returned in the seconds key, for example "400ms" returns { seconds => 0.4 }.

    microseconds. This will also be returned in seconds key.

    nanoseconds (ns). This will also be returned in seconds key.

    decades. This will be returned in years key, for example "1.5 decades" will return { years => 15 }.

  • It has a lower startup overhead

    By avoiding modules like Carp and Exporter::Lite, even strict and warnings (starts up in ~3m vs ~9ms on my computer).


parse_duration($str [, $as_secs ]) => hash

Parses duration string and returns hash (unless when the second argument is true, in which case will return the number of seconds). Dies on parse failure.

Currently two forms of string are recognized: the first is a series of number and time units (e.g. "2 days, 3 hours, 4.5 minutes" or "2h3m4s") and the second is time in the format of hh:mm:ss (the seconds can contain decimal numbers) or hh:mm.

This function is exported by default.

Note that if the function is instructed to return number of seconds, the result is an approximation: leap seconds are not regarded (so a minute is always 60 seconds), a month is always 30 days, a year is always 365 days.




perlancar <>


This software is copyright (c) 2017 by

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.