Went to the library in the morning and wasted my time.

I went to return two books.

The entrance door on the first floor is completely locked.

Closed on public holidays

On general holidays, at the return station

They say you can return it (the return machine is on the 5th floor).

So, a wasted trip

I had soy sauce marinated crab for lunch.

I just found out that they close completely on public holidays.