Northern Ireland enjoys its Late Summer Bank Holiday on Monday 31 August.
The Public Record Office of Northern Ireland (PRONI) will be closed on Monday and will re-open on Tuesday, as will all public lending libraries. Those branch libraries that normally open on Saturdays will be open tomorrow; closed Monday.
The Linen Hall Library in Belfast will be open on Saturday (9:30am–4pm) but not on Monday.
This public holiday does not apply to the Republic of Ireland.