[R] Time of day

Enrico Schumann es at enricoschumann.net
Tue Jun 25 10:37:38 CEST 2013

On Tue, 25 Jun 2013, Rguy <rguy at 123mail.org> writes:

> Is there a simple way to obtain the time of day in R? I want the time of
> day for computational purposes, not for display. I want to be able to
> create code like the following:
> if (time_of_day >= 22:00 & time_of_day <= 06:00) then X otherwise Y
                     ^^^^^                  ^^^^^
this will not work: the times need to be something that R understands,
eg, numeric values such as 2200 or character values such as "22:00"

> I realize I could parse a date/time object and extract the time, but
> hopefully other people have already done this, or there is a
> straightforward representation of time of day in R that I  have not been
> able to find in the documentation.

strftime(Sys.time(), "%H:%M")

Enrico Schumann
Lucerne, Switzerland

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