datetime-now

now.py

#!/usr/bin/python3

import sys
from datetime import datetime, timezone
import argparse

def main(args):
    time = datetime.now(timezone.utc).replace(tzinfo=None)
    print(time.isoformat(timespec="milliseconds") + "Z")
    print(time.timestamp())
    print(int(time.timestamp()*1000))
    print(int(time.timestamp()*1000*1000))

if __name__ == '__main__':
    parser = argparse.ArgumentParser()
    parser.add_argument("--offset", default=None)
    args = parser.parse_args()
    main(args)