"Fri, 21 Jun 2024 19:57:05"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
19:57:05
General datetime
2024-06-21 19:57:05Z
For Database
2024-06-21 19:57:05
For HTTP1.1
Fri, 21 Jun 2024 19:57:05 GMT