This Sunday has acquired various titles down the centuries, including (but not limited to!):
- Dominica in Albis, of White Sunday,  reflecting the day on which the newly baptised members of the Church put aside the white garments traditionally received at their baptism;
 
- Low Sunday, in contrast to the previous 'High' Sunday;
 
- Quasi modo Sunday, for the opening words of the Introit of the Mass (as newborn babes....);
 
- St Thomas Sunday, for the Gospel (in both the EF and OF, St John 20:19-31), which tells the story of St Thomas' doubts and Our Lord's response;
 
- Second Sunday of Easter (Novus Ordo);
 
- Divine Mercy Sunday.
 
The Office from this week follows the Ordinary of Eastertide/Paschaltide:
-  at Lauds there only three antiphons, as the first three psalms are said under one antiphon of alleluias;
 
- at Vespers the psalms are said under one antiphon;
 
- at all the day hours there is a chapter, hymns, responsory/versicle etc of the season.
 
There are also proper antiphons for the Benedictus and Magnificat canticles at Lauds and Vespers each day.