to start and end a fast

Question

When we keep a fast, we end eating at a particular time thus we say:

I started my fast at 05:00 a.m.

When we eat to end the fast what should we say:

to open the fast

to end the fast

to finish the fast

Actually I've heard it in a video that the speaker used the word 'open fast' that was quite strange for me. I don't think if we open the fast. When we eat in the evening after a particular time of fasting, we eat so that the act 'fasting' ends. The following source also says so. https://en.wikipedia.org/wiki/Fasting

Can we say:

I opened my fast.

or

I ended my fast.

Answer 1

The Wikipedia link you provided, says

Each day, the fast begins at dawn and ends at sunset.

It is completely natural to use "begin" and "end".

The meal eaten to end the fast is known as iftar. - Wikipedia (Fasting)

It is even more common to use the word "break". J.R., in the comments section, added the link to an Ngram which shows the uses of different verbs.

The predawn meal is referred to as suhur, and the nightly feast that breaks the fast is called iftar. - Wikipedia (Ramadan)

At the end of each day, we break the fast with a light meal called an iftar following the evening call to prayer. - The Washington Post

The congressional Iftar marked a rare opportunity for the handful of Muslim members in Congress to open up about their faith and break fast in the holy month of Ramadan with their colleagues on Capitol Hill at a time when they are routinely vilified on the right. - The Guardian

I haven't heard the use of "open" when referring to breaking a fast though.