"Fri, 21 Jun 2024 07:40:59"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
07:40:59
General datetime
2024-06-21 07:40:59Z
For Database
2024-06-21 07:40:59
For HTTP1.1
Fri, 21 Jun 2024 07:40:59 GMT