"Mon, 17 Jun 2024 21:21:57"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240617
Only TIME
21:21:57
General datetime
2024-06-17 21:21:57Z
For Database
2024-06-17 21:21:57
For HTTP1.1
Mon, 17 Jun 2024 21:21:57 GMT