"Sat, 29 Jun 2024 13:21:38"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240629
Only TIME
13:21:38
General datetime
2024-06-29 13:21:38Z
For Database
2024-06-29 13:21:38
For HTTP1.1
Sat, 29 Jun 2024 13:21:38 GMT