Eight stations are shutting down earlier than usual this week for four nights as the TTC's new ATC signalling system is installed.

The stations between St. Andrew and Bloor will close at 11 p.m., just a few hours shy of their regular hours.

READ: This Is How Much It Costs To Live Next To Every TTC Subway Stop

Here’s what you need to know:

What’s Closed

From March 25 to March 28, the portion of Line 1 between Bloor and St. Andrew stations will be shut down from 11 p.m. to 6 a.m. the next morning. Affected stations include Wellesley, College, Dundas, Queen, King and Union.

TTC Subway Closure

How To Navigate The Closure

Shuttle buses will operate along the normal subway route. Wheel-Trans service will also be available within the closure area.

How To Pay

If you’re paying with PRESTO during the subway closure just tap your card when you first board the TTC.

If you are transferring from the subway to a shuttle bus or from a shuttle bus to the subway, don’t tap your PRESTO card again. Unlike normal subway to bus transfers, shuttle buses do not need a second tap.

Cash and token fares will still be accepted on the shuttle bus, which will get you a transfer onto the subway (and vice versa).

Normal service will resume at 6 a.m. when the subway normally opens.