SHELL

unix get time

user@machine:~$ date
Tue Jan 12 09:22:56 UTC 2021

generate UNIX timestamp from Date

const getTimestamp = (date = new Date()) => Math.floor(date.getTime() / 1000);

getTimestamp(); // 1602162242

get unix time from datetime

import calendar
import datetime
 
date = datetime.datetime.utcnow()
utc_time = calendar.timegm(date.utctimetuple())
print(utc_time)

from datetime to unix timestamp

import time
import datetime
d = datetime.date(2015,1,5)

unixtime = time.mktime(d.timetuple())
unixtime

get unix time from date

$ date +%s  ## gives UNIX timestamp at command line