"Sat, 29 Jun 2024 16:35:12"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240629
Only TIME
16:35:12
General datetime
2024-06-29 16:35:12Z
For Database
2024-06-29 16:35:12
For HTTP1.1
Sat, 29 Jun 2024 16:35:12 GMT