"Sat, 23 Mar 2024 14:10:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240323
Only TIME
14:10:35
General datetime
2024-03-23 14:10:35Z
For Database
2024-03-23 14:10:35
For HTTP1.1
Sat, 23 Mar 2024 14:10:35 GMT