"Tue, 18 Jun 2024 12:38:30"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240618
Only TIME
12:38:30
General datetime
2024-06-18 12:38:30Z
For Database
2024-06-18 12:38:30
For HTTP1.1
Tue, 18 Jun 2024 12:38:30 GMT