Is it possible to allocate half day leave in leave allocation?

Is it possible to allocate half day leave like 25.5 days in leave allocation?

From and to dates are there ,but not supporting half day allocation

Yes, it is possible to allocate 25.5 leave in Leave allocation.
Allot 25.5 days in leave allocation and the no. of days should be 26 between (from-date and to-date)
0.5 is considered as Half day!