In which time format should the time of observation be recorded for most SAWRS?

The time of observation for most Surface Automated Weather Recording Systems (SAWRS) should be recorded in a 24-hour clock format. This format is preferred because it eliminates ambiguity associated with the 12-hour clock's AM and PM designations, providing clear and precise timing. The 24-hour time format is widely used in meteorology and aviation, where accuracy and clarity in communication are paramount to ensure that observations are understood without confusion.

While UTC (Coordinated Universal Time) and GMT (Greenwich Mean Time) are important time standards in meteorology, they are not inherently tied to the specific recording method for SAWRS observations. UTC is an essential concept in global weather reporting and might be used alongside the 24-hour clock format, but the actual recording of time in SAWRS typically follows the 24-hour standard.