"Fri, 15 Mar 2024 11:20:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240315
Only TIME
11:20:21
General datetime
2024-03-15 11:20:21Z
For Database
2024-03-15 11:20:21
For HTTP1.1
Fri, 15 Mar 2024 11:20:21 GMT