Apostle Thomas

Commemorated on June 30

The Synaxis of the Glorious and All-Praiseworthy Twelve Apostles of Christ appears to be an ancient Feast. The Church honors each of the Twelve Apostles on separate dates during the year, and has established a general commemoration for all of them on the day after the commemoration of the Glorious and First-Ranked among the Apostles Peter and Paul.
The holy, glorious, all-laudable Apostle Thomas is also commemorated on October 6 and
on the Sunday after Pascha.
For lists of the Apostles’ names, see: Mt.10:2, Mark 3:14, Luke 6:12, Acts 1:13, 26.

TROPARION-TONE 4

First-enthroned of the apostles, / teachers of the universe: / Entreat the Master of all / to grant peace to the world, / and to our souls great mercy!

KONTAKION- TONE 2

 Today Christ the Rock glorifies with highest honor / The rock of Faith and leader of the Apostles, / Together with Paul and the company of the twelve, / Whose memory we celebrate with eagerness of faith, / Giving glory to the one who gave glory to them!

SOURCE:

SAINT OR FEAST POSTED THIS DATE 2012(with 2011's link here also and further, 2010, 2009 and even 2008!)