"Sat, 16 Mar 2024 20:15:47"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240316
Only TIME
20:15:47
General datetime
2024-03-16 20:15:47Z
For Database
2024-03-16 20:15:47
For HTTP1.1
Sat, 16 Mar 2024 20:15:47 GMT