qertmountain.blogg.se

• #Utc time plus or minus minutes code#

Unix timestamps are commonly used for files in operating systems.

#Utc time plus or minus minutes code#

Using the below code will print them: In: for tz in pytz.all_timezones: print(tz) Out: Africa/Abidjan Africa/Accra Africa/Addis_Ababa (Only showing the first three as examples) Unix timestamp / Epoch time calculation If you are interested in the whole list of different time zones. The comparisons between dates are straightforward with usual comparison symbols: In: print(d (d2 +(timedelta(weeks=52*6)))) # d is more than 6 years (assume each year has 52 weeks) after d2? print(d != d2) # d2 is not the same date as d? print(d = d2) # d2 is the same date as d? Out: True False True False Time zones settingsĪnd we can also compare time in different time zones, such as Toronto and Shanghai: In: import pytz timezone = pytz.timezone("America/Toronto") dtz = timezone.localize(d) print(dtz.tzinfo) print(dtz) Out: America/Toronto 13:18:27.386763-05:00 In: shanghai_dt = dtz.astimezone(pytz.timezone("Asia/Shanghai")) print(shanghai_dt) Out: 02:18:27.386763+08:00 In: (dtz - shanghai_dt)/timedelta(days=1) # same datetimes Out: 0.0 Let’s do some “time travel” by different time intervals of second, minute, hour, day, week or year: In: print(d + timedelta(seconds=1)) # today + one second print(d + timedelta(minutes=1)) # today + one minute print(d + timedelta(hours=1)) # today + one hour print(d + timedelta(days=1)) # today + one day print(d + timedelta(weeks=1)) # today + one week print(d + timedelta(days=1)*365) # today + one year Out: 13:18:28.386763 13:19:27.386763 14:18:27.386763 13:18:27.386763 13:18:27.386763 13:18:27.386763 Datetime comparison In: date_diff = (d - d2)/timedelta(days=1) print('date_diff = years'.format(date_diff)) Out: date_diff = 3.8919300921728497 years Datetime plus/minus a certain period of time

We can also only print the difference of two datetimes in days, weeks or years, etc. The example below prints the difference in days (for example today and February 1st, 2016): In: from datetime import timedelta d = datetime.now() date_string = '' d2 = datetime.strptime(date_string, '%m/%d/%Y') print(d - d2) Out: 1420 days, 13:18:27.386763 In: print(d.strftime("%A %d/%m/%Y")) # date to string Out: Sunday String to date conversionīelow are examples showing two popular strings being converted to date format: In: date_string = ' 12:00PM' print(datetime.strptime(date_string, '%Y-%m-%d %I:%M%p')) Out: 12:00:00 In: date_string = '' d2 = datetime.strptime(date_string, '%m/%d/%Y') print(d2) Out: 00:00:00 Difference in datetime calculation