"Tue, 18 Jun 2024 18:15:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240618
Only TIME
18:15:35
General datetime
2024-06-18 18:15:35Z
For Database
2024-06-18 18:15:35
For HTTP1.1
Tue, 18 Jun 2024 18:15:35 GMT