since your times are all passing 00 for the seconds:
08:00:00
why not use the 14:38 format instead of the 14:38[:18] format, and set the list values to only pass hour and minutes instead of hours minutes seconds.
08:00
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.