During my birthday or On my birthday?
During my birthday,my mother cooked a lot of food and my father decorated the house nicely.
On my birthday,my mother cooked a lot of food and my father decorated the house nicely.

grammatically,which one is better?

Question

During my birthday or On my birthday?
During my birthday,my mother cooked a lot of food and my father decorated the house nicely.
On my birthday,my mother cooked a lot of food and my father decorated the house nicely.

grammatically,which one is better?

Answer

The second one.
Although a day encompasses a period of time, when referred to in this specific way, you should use 'on'.
examples:
on thursday, I went to school
on new year's day, we celebrated 
on my anniversary, I went to the city
but ...
during the evening ...
during the day ...
during the summer ...

Answer

Hello E.T,

Here you say :
"On my birthday....."

If you used 'during my birthday' it will rather be:

"During my birthday party .."
and you will mention events or incidents happening during the time your party took place as in :
"During my birthday party ,we danced and laughed a lot."

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