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@junzis
Last active February 11, 2024 14:44
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Time conversions in python
from datetime import datetime
import time
#-------------------------------------------------
# conversions to strings
#-------------------------------------------------
# datetime object to string
dt_obj = datetime(2008, 11, 10, 17, 53, 59)
date_str = dt_obj.strftime("%Y-%m-%d %H:%M:%S")
print date_str
# 2008-11-10 17:53:59
# time tuple to string
time_tuple = (2008, 11, 12, 13, 51, 18, 2, 317, 0)
date_str = time.strftime("%Y-%m-%d %H:%M:%S", time_tuple)
print date_str
# 2008-11-12 13:51:18
#-------------------------------------------------
# conversions to datetime objects
#-------------------------------------------------
# time tuple to datetime object
time_tuple = (2008, 11, 12, 13, 51, 18, 2, 317, 0)
dt_obj = datetime(*time_tuple[0:6])
print repr(dt_obj)
# datetime.datetime(2008, 11, 12, 13, 51, 18)
# date string to datetime object
date_str = "2008-11-10 17:53:59"
dt_obj = datetime.strptime(date_str, "%Y-%m-%d %H:%M:%S")
print repr(dt_obj)
# datetime.datetime(2008, 11, 10, 17, 53, 59)
# timestamp to datetime object in local time
timestamp = 1226527167.595983
dt_obj = datetime.fromtimestamp(timestamp)
print repr(dt_obj)
# datetime.datetime(2008, 11, 12, 13, 59, 27, 595983)
# timestamp to datetime object in UTC
timestamp = 1226527167.595983
dt_obj = datetime.utcfromtimestamp(timestamp)
print repr(dt_obj)
# datetime.datetime(2008, 11, 12, 21, 59, 27, 595983)
#-------------------------------------------------
# conversions to time tuples
#-------------------------------------------------
# datetime object to time tuple
dt_obj = datetime(2008, 11, 10, 17, 53, 59)
time_tuple = dt_obj.timetuple()
print repr(time_tuple)
# (2008, 11, 10, 17, 53, 59, 0, 315, -1)
# string to time tuple
date_str = "2008-11-10 17:53:59"
time_tuple = time.strptime(date_str, "%Y-%m-%d %H:%M:%S")
print repr(time_tuple)
# (2008, 11, 10, 17, 53, 59, 0, 315, -1)
# timestamp to time tuple in UTC
timestamp = 1226527167.595983
time_tuple = time.gmtime(timestamp)
print repr(time_tuple)
# (2008, 11, 12, 21, 59, 27, 2, 317, 0)
# timestamp to time tuple in local time
timestamp = 1226527167.595983
time_tuple = time.localtime(timestamp)
print repr(time_tuple)
# (2008, 11, 12, 13, 59, 27, 2, 317, 0)
#-------------------------------------------------
# conversions to timestamps
#-------------------------------------------------
date_str = "2008-11-10 17:53:59"
time_tuple = time.strptime(date_str, "%Y-%m-%d %H:%M:%S")
# time tuple in local time to timestamp
timestamp = time.mktime(time_tuple)
print repr(timestamp)
# 1226527167.0
# time tuple in utc time to timestamp
timestamp_utc = calendar.timegm(time_tuple_utc)
print repr(timestamp_utc)
# 1226498367
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