"Sat, 08 Jun 2024 13:21:00"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240608
Only TIME
13:21:00
General datetime
2024-06-08 13:21:00Z
For Database
2024-06-08 13:21:00
For HTTP1.1
Sat, 08 Jun 2024 13:21:00 GMT