De or het kalendertelling?

The correct Dutch article is:

de kalendertelling

Rule Words ending in -ing: almost always de. See the rule

How to use kalendertelling

the kalendertellingde kalendertelling
this kalendertellingdeze kalendertelling
that kalendertellingdie kalendertelling
our kalendertellingonze kalendertelling
your kalendertellingjouw kalendertelling
every kalendertellingelke kalendertelling
which kalendertelling?welke kalendertelling?
a big kalendertelling / the big kalendertellingeen grote kalendertelling, de grote kalendertelling