Over the Easter weekend, NCT services will run as normal up to and including Thursday 13 April 2017, then:
Good Friday 14 April – Saturday service except on Navy 49, which will run a normal weekday service
Saturday 15 April – normal Saturday service
Easter Sunday 16 April – normal Sunday service
Easter Monday 17 April – Sunday service, including the 49X
Tuesday 18 April – normal service
Click this link for full details.