"Sat, 03 Aug 2024 12:38:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240803
Only TIME
12:38:21
General datetime
2024-08-03 12:38:21Z
For Database
2024-08-03 12:38:21
For HTTP1.1
Sat, 03 Aug 2024 12:38:21 GMT