"Sat, 21 Sep 2024 06:51:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240921
Only TIME
06:51:20
General datetime
2024-09-21 06:51:20Z
For Database
2024-09-21 06:51:20
For HTTP1.1
Sat, 21 Sep 2024 06:51:20 GMT