"Sat, 29 Jun 2024 14:37:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240629
Only TIME
14:37:20
General datetime
2024-06-29 14:37:20Z
For Database
2024-06-29 14:37:20
For HTTP1.1
Sat, 29 Jun 2024 14:37:20 GMT