"Sun, 18 Aug 2024 18:48:46"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240818
Only TIME
18:48:46
General datetime
2024-08-18 18:48:46Z
For Database
2024-08-18 18:48:46
For HTTP1.1
Sun, 18 Aug 2024 18:48:46 GMT