any version for 5- min time slots ( eg. 3.05- 3.45 ) or is it configurable in ureserve ?
Unfortunately, for uReserve, the size of the time slots are not configurable at this time. We do, however, have versions of uReserve with 15 minute, 30 minute, and 1-hour time slots... but no 5 minute time slot version at this time.
Depending on how you're planning to use uReserve, you may want to check out uGolf:
... Which does allow you to configure the time slot size... and allows you to re-configure most of the labels so that you don't really have to use it for "golf only" applications.