The two holidays are in law entirely distinct except for being appointed to be observed on the same day.

In 1910 the government stipulated that the holiday would be observed on the same day throughout the nation.

It is observed only once a year, at nighttime, on the fourth day after the full moon of December.

Traditionally, every temple observes this festival once a year on the traditional day.

As a tribute, all radio stations throughout the world observed two minutes of silence on the next day.

We discovered that our presence was being observed on the third day of our arrival.

Observed only by firstborn males, on the day before Passover.

It is intended to be observed on the last day of February every year.

It is usually observed not on the actual day, December 1, due to student final exams.

The ones my parents were observing on the day I was born were mudbirds.