Re: CDateTimeCtrl to display UTC
I don't think I quite understand the problem. If the user is entering the
time, then it is what they are entering, what does that have anything to do
with the timezone?
Say the user enters 10:52am UTC
When you call GetTime on the DateTime control, it will return a time struct
with todays date, 10:52am in the time. Why would you have to convert
anything?
Maybe I don't see the entire problem. Anyway CTime has a GetGmtTm, and there
is also TzSpecificLocalTimeToSystemTime (converts local time to a UTC time)
and of course SystemTimeToTzSpecificLocalTime.
AliR.
<AllanInChina2001@yahoo.com> wrote in message
news:dd188175-0d2a-4193-9de0-d345bc446c1a@i29g2000prf.googlegroups.com...
Ok, the problem is this; I am using a pair of CDateTimeCtrls one for
the date and one for hours/minutes/seconds. The problem I have is that
I need to work in UTC - all my internal calculations are using time_t
and the times shown to and selected by the user must be in UTC. I'm
getting into problems as the controls adjust for local time which I
don't want. I think I need to detect if an offset from UTC is in
effect and add/subtract that ammout when setting / reading from the
controls.
This is getting a bit ugly - can anyone think of a more elegant
solution?
Regards
Allan
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