"Sat, 15 Jun 2024 18:06:26"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240615
Only TIME
18:06:26
General datetime
2024-06-15 18:06:26Z
For Database
2024-06-15 18:06:26
For HTTP1.1
Sat, 15 Jun 2024 18:06:26 GMT