High days and holidays British noun phrase
Days when festivities, or holidays happen
My wife and I usually travel abroad on high days and holidays.
There are several festivals held by the village council on high days and holidays.
A high day was the day of an important festival according to the Church's calendar. A holiday (originally holy day ) was similar but less specific. Holiday now refers to any day off, without any sacred significance, and so holy day is used if a specifically religious occasion is intended.
Confusion made worse than before.
There was heavy traffic on the way to work this morning. Confusion worse confounded when some drivers were arguing with each other right in the middle of the street.