"Mon, 17 Jun 2024 18:34:40"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240617
Only TIME
18:34:40
General datetime
2024-06-17 18:34:40Z
For Database
2024-06-17 18:34:40
For HTTP1.1
Mon, 17 Jun 2024 18:34:40 GMT