Monitoring remaining time of Timer with WinCC Flex

Dear all,

I have made a program which to monitoring remaining time of timer in PLC with wincc flex. But there is a problem, if i set time value for 100 Second the display will show 100 then the timer will count down normally(100 99 98 97... ... 0), but if i set less than 100 then display will show the third digit. I think it is the mili second right? So, how to solve this? i want to discard the third digit when i want to set time value less than 100.

Thank you all,

PS :( Device : TP177B, S7-300 )