calculate the exact and approximate number of days

i) from 19 november 1995 to 1 may 1996

then,i want to know how i can differences between exact time approximate time.

sometimes i cannot understand how to find the approximate time

1 answer

left in 1995: 12+31 = 43 days
to go in 1996: 31+29+31+30+1 = 122 days

no idea what rules you use for approximate time.

19 Nov - 19 May is 6 months, or 180 days (using the 360-day year). Knock off 18 days in may to get 162 days