Grammar

PREPOSICIONS DE TEMPS

AT–for times of the day/ (=per moments del dia)

at half past 7
at midnight
at sunset
at breakfast time

ON-for days and dates/ (=pels dies de la setmana i les dates)

on the 5th of June
on Tuesdays,
on Saturday morning
on Christmas day

IN-for longer periods of time /(=per períodes llargs de temps)

in April
in 1987
in the winter of 1976
in the 1930s

No preposition – pels adverbis de temps

next
last
tomorrow
yesterday