I/A Series G3 schedule times can only be adjusted in half hour increments?
TAC I/A Series
I/A Series G3 versions 3.3.22, 3.4.51, and 3.5.25
Schedule module and associated user interface is not correctly processing the time setting causing the time to round to the nearest half hour increment.
Note: It is recommended to upgrade to the latest maintenance build for the I/A Series G3 version being used.
If this is not possible, updated schedule modules are available for download from The Exchange Download Center website