"Sun, 31 Mar 2024 14:09:56"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240331
Only TIME
14:09:56
General datetime
2024-03-31 14:09:56Z
For Database
2024-03-31 14:09:56
For HTTP1.1
Sun, 31 Mar 2024 14:09:56 GMT