"Tue, 18 Jun 2024 18:37:59"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240618
Only TIME
18:37:59
General datetime
2024-06-18 18:37:59Z
For Database
2024-06-18 18:37:59
For HTTP1.1
Tue, 18 Jun 2024 18:37:59 GMT