The conversion between timestamp and datetime and UTC time is implemented in Python _python

Source: Internet
Author: User
Tags local time timedelta

Python projects often need to convert time between datetime format and timestamp format, or you need to convert UTC time to local time, this article summarizes the transformation between these time functions, for your reference.

One, DateTime converted to timestamp

def datetime2timestamp (DT, convert_to_utc=false):
  ' Converts a DateTime object to UNIX timestamp in milliseconds. '
  if isinstance (DT, datetime.datetime): If
    CONVERT_TO_UTC: # is converted to UTC time
      dt = dt + Datetime.timedelta ( HOURS=-8) # China default time zone
    timestamp = total_seconds (Dt-epoch) return
    long (timestamp) return

Second, timestamp converted to datetime

def timestamp2datetime (timestamp, convert_to_local=false):
  ' converts UNIX timestamp to a DateTime object. '
  if Isinstance (timestamp, (int, long, float):
    dt = Datetime.datetime.utcfromtimestamp (timestamp)
    if Convert_to_local: # Convert to local time
      dt = dt + Datetime.timedelta (hours=8) # China default time zone return
    DT return

Iii. timestamp of current UTC time

Def timestamp_utc_now (): Return
  Datetime2timestamp (Datetime.datetime.utcnow ())

Iv. current timestamp of local time

Def timestamp_now (): Return
  Datetime2timestamp ( ())

Five UTC time to local time

# need to install Python-dateutil
# Ubuntu under: sudo apt-get install python-dateutil
# or use pip:sudo pip install Python-dateutil From
dateutil import TZ to import tzlocal from
datetime import datetime #
get local time Zo NE name
print (tzlocal ()). Tzname ()
# UTC Zone
from_zone = Tz.gettz (' UTC ')
# in Zone
To_zone = Tz.gettz (' CST ')
UTC = Datetime.utcnow ()
# Tell the DateTime object, it ' s in UTC time Zone
   UTC = Utc.replace (tzinfo=from_zone)
# Convert time zone Local
= Utc.astimezone (to_zone)
Print Datetime.strftime (Local, "%y-%m-%d%h:%m:%s")

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