clockFormat

• global property
• The clockFormat global property specifies whether time formats should use a "12 hour" (with "AM" and "PM" -- the default) or "24 hour" format. This affects formats used by all of the time functions (the time, the long time, the local time, etc.), and by the convert command.

         put the time -- "06:18 PM"
        set the clockFormat to "24hr" -- any value starting with "24" works
        put the time -- "18:18"