"Sat, 13 Jul 2024 15:38:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240713
Only TIME
15:38:56
General datetime
2024-07-13 15:38:56Z
For Database
2024-07-13 15:38:56
For HTTP1.1
Sat, 13 Jul 2024 15:38:56 GMT