"Sun, 19 Jan 2025 19:25:45"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250119
Only TIME
19:25:45
General datetime
2025-01-19 19:25:45Z
For Database
2025-01-19 19:25:45
For HTTP1.1
Sun, 19 Jan 2025 19:25:45 GMT