convert-timezone ( timestamp duration -- timestamp )
Calendar

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Vocabulary
calendar

Inputs

timestamp	a timestamp
duration	a duration

Outputs

timestamp

a timestamp

Word description
Converts the timestamp's gmt-offset to the GMT offset represented by the duration.

Examples

USING: accessors calendar prettyprint ; now-gmt noon instant -5 >>hour convert-timezone gmt-offset>> hour>> .
-5

See also
local-time, >local-time, convert-local-time, gmt, >gmt, convert-gmt, utc, >utc, convert-utc

Definition

USING: accessors calendar.private kernel ;

IN: calendar

: convert-timezone ( timestamp duration -- timestamp )
    [ over gmt-offset>> time- (time+) ] [ >>gmt-offset ] bi ;