What Time Is 20:45 CET In IST?

The Time Difference between UST and IST;IST=UST+5:30

The Time Difference between UST and CET;CET=UST+1

The Time Difference between IST and CET;IST=UST+5:30+1:00

So the time 14:30 in india=20:45+5:30+1:00=>2:45

00.45 in IST, difference is 4.5 hours.