"Sun, 07 Jul 2024 15:18:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240707
Only TIME
15:18:20
General datetime
2024-07-07 15:18:20Z
For Database
2024-07-07 15:18:20
For HTTP1.1
Sun, 07 Jul 2024 15:18:20 GMT