"Sat, 15 Jun 2024 06:01:01"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240615
Only TIME
06:01:01
General datetime
2024-06-15 06:01:01Z
For Database
2024-06-15 06:01:01
For HTTP1.1
Sat, 15 Jun 2024 06:01:01 GMT