"Thu, 27 Jun 2024 18:15:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240627
Only TIME
18:15:21
General datetime
2024-06-27 18:15:21Z
For Database
2024-06-27 18:15:21
For HTTP1.1
Thu, 27 Jun 2024 18:15:21 GMT