"Fri, 21 Jun 2024 06:18:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
06:18:45
General datetime
2024-06-21 06:18:45Z
For Database
2024-06-21 06:18:45
For HTTP1.1
Fri, 21 Jun 2024 06:18:45 GMT