The Philippines uses the Gregorian calendar, which is the most widely used calendar system in the world. This calendar was introduced in the Philippines during the Spanish colonial period and has been in use ever since.
Romans first developed the calendar used most today
the Gregorian calendar says my text book
The first known calendar system used in the Philippines was the ancient Tagalog calendar, known as the "Pasio" or "Pasigua." It was a lunar calendar based on the phases of the moon and was used by various ethnic groups in the archipelago before the arrival of the Spanish.
The calendar used most widely today, the Gregorian calendar, was developed by Pope Gregory XIII in 1582. This calendar replaced the Julian calendar and is now the internationally accepted civil calendar.
The name of Caesar's calendar was the Julian calendar. It was replaced in 1582 by the Gregorian calendar, which we used today.
The Philippines uses the Gregorian calendar, which is the internationally accepted civil calendar. However, there are also specific calendar systems followed by some indigenous communities and cultural groups in the Philippines.
There are various calendars used around the world now, like the Chinese calendar, but the main one, using the months from January to December is the Gregorian calendar.
The Gregorian calendar is introduced in the Philippines by Spanish Governor-General Claveria in 1844.
Gregorian
Julius Caesar modernized the calendar. What is known as the Julian Calendar is still used in some instances today.
The Sumariens created the calendar that we use today.