"Sun, 18 Aug 2024 12:55:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
12:55:45
General datetime
2024-08-18 12:55:45Z
For Database
2024-08-18 12:55:45
For HTTP1.1
Sun, 18 Aug 2024 12:55:45 GMT