"Thu, 20 Jun 2024 18:15:39"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240620
Only TIME
18:15:39
General datetime
2024-06-20 18:15:39Z
For Database
2024-06-20 18:15:39
For HTTP1.1
Thu, 20 Jun 2024 18:15:39 GMT