I have countrynames and utcoffset of that country How to find out out local time in that country using utcoffset?
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Just get the UTC hour and add the offset... was that your question?pconcepcion– pconcepcion2011-05-06 14:49:09 +00:00Commented May 6, 2011 at 14:49
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@pconcepcion: utc offset may change through the time.jfs– jfs2013-12-02 19:00:22 +00:00Commented Dec 2, 2013 at 19:00
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5 Answers
Check out pytz for looking up timezones by location. Maybe something like this:
>>> import pytz, datetime
>>> pytz.country_timezones['de']
['Europe/Berlin']
>>> matching_tzs = [t for t in pytz.country_timezones['de'] if pytz.timezone(t)._utcoffset.total_seconds() == 3600]
>>> datetime.datetime.now(tz=pytz.timezone(matching_tzs[0]))
datetime.datetime(2011, 5, 6, 17, 5, 26, 174828, tzinfo=<DstTzInfo 'Europe/Berlin' CEST+2:00:00 DST>)
1 Comment
jfs
+1 for pytz. But there is no need to use private
_utcoffset that might yield wrong results because the offset may depend on time. You could use .utcoffset() method insteadcall datetime.now() with the time zone (as a tzinfo object) as an argument.
Comments
A country may span several timezones. A utc offset for a place may change through the time.
Given a country code and a utc offset, you could try to find matching timezone from Olson tz database for the current time. Here's variant of @Mu Mind's answer that takes into account current time (otherwise the result can be unexpected for some timezones):
from datetime import datetime, timedelta
import pytz
country_code, utc_offset = 'de', timedelta(hours=1)
# find matching timezones and print corresponding local time
now_in_utc = datetime.now(pytz.utc)
for zonename in pytz.country_timezones[country_code]:
tz = pytz.timezone(zonename)
local_time = now_in_utc.astimezone(tz)
if tz.utcoffset(local_time) == utc_offset: #NOTE: utc offset depends on time
print("%s\t%s" % (tz.zone, local_time.strftime("%Y-%m-%d %H:%M:%S %Z%z")))
Output
Europe/Berlin 2013-12-02 20:42:49 CET+0100
Comments
Save the current TZ environ variable value and then do
>>> os.environ['TZ'] = 'US/Eastern'
>>> time.tzset()
And for the library, whatever time function you use will be for the US/Eastern timezone, you c can reset it back to original one later.
Example usage:
>>> time.strftime('%X %x %Z')
'22:54:11 05/06/11 SGT'
>>> os.environ['TZ'] = 'US/Eastern'
>>> time.strftime('%X %x %Z')
'10:54:30 05/06/11 EDT'
Please refer to time module documentation for examples.
Comments
working code
utcoffset='+5:30'
utctime=datetime.datetime.utcnow()
hr=utcoffset[0:utcoffset.find(':')]
min=utcoffset[utcoffset.find(':')+1:]
datetimeofclient=datetime.timedelta(hours=int(hr),minutes=int(min))
