Get System Local Timezone In Python
Solution 1:
I don't think this is possible using pytz
or pandas
, but you can always install python-dateutil or tzlocal:
from dateutil.tzimport tzlocal
datetime.now(tzlocal())
or
from tzlocal importget_localzonelocal_tz= get_localzone()
Solution 2:
time.timezone
should work.
The offset of the local (non-DST) timezone, in seconds west of UTC (negative in most of Western Europe, positive in the US, zero in the UK).
Dividing by 3600 will give you the offset in hours:
import timeprint(time.timezone / 3600.0)
This does not require any additional Python libraries.
Solution 3:
I have found that in many cases this works: (Since Python 3.6)
from datetime import datetime
# use this extension and it adds the timezone
tznow = datetime.now().astimezone()
print(tznow.isoformat())
2020-11-05T06:56:38.514560-08:00# It shows that it does have a valid timezonetype(tznow.tzinfo)
<class'datetime.timezone'>
I find this handy as it does not depend on external packages. It appears to work only in Python3 (but not in Python2)
Solution 4:
Quite a few locale time related settings from OS level is covered by time
module
import time
# Since Python 3.3
local_time = time.localtime() # returns a `time.struct_time`
tzname_local = local_time.tm_zone # 'EST'
dst = local_time.tm_isdst # _from docs_: may be set to 1 when daylight savings time is in effect, # and 0 when it is not. A value of -1 indicates that this is not known, # and will usually result in the correct state being filled in.
tm_gmtoff
andtm_zone
attributes are available on platforms with C library supporting the corresponding fields instruct tm
. see: https://docs.python.org/3/library/time.html#time.struct_time
# At least from Python 2.7.18local_tzname = time.tzname # 'EST'
A tuple of two strings: the first is the name of the local non-DST timezone, the second is the name of the local DST timezone. If no DST timezone is defined, the second string should not be used. see: https://docs.python.org/2.7/library/time.html#time.tzname)
Another trick is to use datetime.now().astimezone()
as found here and the reason why it fails on python 2.x
from datetime import datetime
# Python 3 will return a datetime with local timezone,
local_now = datetime.now().astimezone()
# Doesn't work on python 2.x # datetime.now().astimezone() -> TypeError: Required argument 'tz' (pos 1) not found# datetime.now().astimezone(dateutil.tz.UTC) -> ValueError: astimezone() cannot be applied to a naive datetime
local_tz = local_now.tzinfo # datetime.timezone
local_tzname = local_tz.tzname(local_now)
print(local_tzname)
Solution 5:
While it doesn't use pytz/Pandas, the other answers don't either, so I figured I should post what I'm using on mac/linux:
importsubprocesstimezone= subprocess.check_output("date +%Z")
Benefits over the other answers: respects daylight savings time, doesn't require additional libraries to be installed.
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