calendar
US /ˈkæl.ən.dɚ/
UK /ˈkæl.ən.dɚ/

1.
calendario
a chart or series of pages showing the days, weeks, and months of a particular year, or giving particular seasonal information
:
•
I marked the appointment on my calendar.
Marqué la cita en mi calendario.
•
The new year's calendar has beautiful landscapes.
El calendario de año nuevo tiene hermosos paisajes.
2.
calendario, sistema de datación
a system by which the beginning, length, and divisions of the year are fixed
:
•
The Gregorian calendar is widely used around the world.
El calendario gregoriano es ampliamente utilizado en todo el mundo.
•
Ancient civilizations developed their own unique calendars.
Las civilizaciones antiguas desarrollaron sus propios calendarios únicos.