"Mon, 24 Jun 2024 06:21:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240624
Only TIME
06:21:20
General datetime
2024-06-24 06:21:20Z
For Database
2024-06-24 06:21:20
For HTTP1.1
Mon, 24 Jun 2024 06:21:20 GMT