"Fri, 21 Jun 2024 12:56:09"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
12:56:09
General datetime
2024-06-21 12:56:09Z
For Database
2024-06-21 12:56:09
For HTTP1.1
Fri, 21 Jun 2024 12:56:09 GMT