How can I change System Date, Time, Timezone in Python? Is there any module available for this?
- I don’t want to execute any system commands
- I want one common solution, which should work on both Unix and Windows.
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Answer
import sys import datetime time_tuple = ( 2012, # Year 9, # Month 6, # Day 0, # Hour 38, # Minute 0, # Second 0, # Millisecond ) def _win_set_time(time_tuple): import pywin32 # http://timgolden.me.uk/pywin32-docs/win32api__SetSystemTime_meth.html # pywin32.SetSystemTime(year, month , dayOfWeek , day , hour , minute , second , millseconds ) dayOfWeek = datetime.datetime(time_tuple).isocalendar()[2] pywin32.SetSystemTime( time_tuple[:2] + (dayOfWeek,) + time_tuple[2:]) def _linux_set_time(time_tuple): import ctypes import ctypes.util import time # /usr/include/linux/time.h: # # define CLOCK_REALTIME 0 CLOCK_REALTIME = 0 # /usr/include/time.h # # struct timespec # { # __time_t tv_sec; /* Seconds. */ # long int tv_nsec; /* Nanoseconds. */ # }; class timespec(ctypes.Structure): _fields_ = [("tv_sec", ctypes.c_long), ("tv_nsec", ctypes.c_long)] librt = ctypes.CDLL(ctypes.util.find_library("rt")) ts = timespec() ts.tv_sec = int( time.mktime( datetime.datetime( *time_tuple[:6]).timetuple() ) ) ts.tv_nsec = time_tuple[6] * 1000000 # Millisecond to nanosecond # http://linux.die.net/man/3/clock_settime librt.clock_settime(CLOCK_REALTIME, ctypes.byref(ts)) if sys.platform=='linux2': _linux_set_time(time_tuple) elif sys.platform=='win32': _win_set_time(time_tuple)
I don’t have a windows machine so I didn’t test it on windows… But you get the idea.