This is the 184th most frequent Hungarian word.
hétfőn
"On Monday"
Here 'hétfőn' specifies the day of the week when the action occurs, indicating 'on Monday'.
Hétfőn reggel mindig futok a parkban.
On Monday mornings, I always run in the park.
Here 'hétfőn' is used to specify the time frame for the condition stated, 'on Monday'.
Az üzlet hétfőn nincs nyitva.
The shop is not open on Monday.
Here 'hétfőn' specifies the day when the planned event will take place, 'on Monday'.