"Sat, 15 Jun 2024 18:41:52"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240615
Only TIME
18:41:52
General datetime
2024-06-15 18:41:52Z
For Database
2024-06-15 18:41:52
For HTTP1.1
Sat, 15 Jun 2024 18:41:52 GMT