"Wed, 19 Jun 2024 21:30:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240619
Only TIME
21:30:15
General datetime
2024-06-19 21:30:15Z
For Database
2024-06-19 21:30:15
For HTTP1.1
Wed, 19 Jun 2024 21:30:15 GMT