"Thu, 27 Jun 2024 21:40:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240627
Only TIME
21:40:15
General datetime
2024-06-27 21:40:15Z
For Database
2024-06-27 21:40:15
For HTTP1.1
Thu, 27 Jun 2024 21:40:15 GMT