"Sun, 18 Aug 2024 10:02:11"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
10:02:11
General datetime
2024-08-18 10:02:11Z
For Database
2024-08-18 10:02:11
For HTTP1.1
Sun, 18 Aug 2024 10:02:11 GMT