"Sun, 30 Jun 2024 21:40:14"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240630
Only TIME
21:40:14
General datetime
2024-06-30 21:40:14Z
For Database
2024-06-30 21:40:14
For HTTP1.1
Sun, 30 Jun 2024 21:40:14 GMT