Works, unless the time difference changes from PM to AM
=(Format([PUSH1PRODUCTION_TIME_TUB_STOP]-[PUSH1PRODUCTION_TIME_TUB_START],"hh")*60)+Format([PUSH1PRODUCTION_TIME_TUB_STOP]-[PUSH1PRODUCTION_TIME_TUB_START],"nn")
1, start = 4:10 AM stop = 5:00 AM Total = 50.00 correct
2, start = 5:05 AM...