19
Example: To calculate the date 100 days before January 1, 2020
1
A
uu
If something else is displayed, press
u
again.
2
200101
For the year, use the two rightmost digits of the Gregorian year.
3
=
1 2 3
Days bfr / aftr / prd
4
Press 1 to select “bfr” (before).
Days before? [=]
(2 selects “aftr” (after), 3 selects “prd” (period).)
5
100
=
2019-09-23
100 days before:
6
=
Base date? 20yy mm dd [=]
2020-01-01
Base date? 20yy mm dd [=]
