time- ( time1 time2 -- time3 )
Calendar » Timestamp arithmetic

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Vocabulary
calendar

Inputs

time1	a timestamp or a duration
time2	a timestamp or a duration

Outputs

time3

a timestamp or a duration

Word description
Subtracts two durations to produce a duration or subtracts a duration from a timestamp to produce a timestamp. The calculation takes timezones into account.

Examples

USING: calendar math.order prettyprint ; 10 months 2 months time- 8 months <=> .
+eq+

USING: accessors calendar math.order prettyprint ; 2010 1 1 <date> 3 days time- day>> .
29

See also
time+

Definition

IN: calendar

GENERIC: time- ( time1 time2 -- time3 )

Methods

USING: calendar kernel ;

M: duration time-
    over timestamp? [ before time+ ] [ duration- ] if ;


USING: calendar calendar.private ;

M: timestamp time- (time-) seconds ;