May 31 - Eastern Orthodox Church calendar - June 2
All fixed commemorations below celebrated on June 14 by Orthodox Churches on the Old Calendar.
For June 1st, Orthodox Churches on the Old Calendar commemorate the Saints listed on May 19.
Martyrs Justin the Philosopher (Justin Martyr), Chariton, Charita, Euelpistus, Hierax, Peonus, Valerian (Liberianus), and Justus at Rome (166)
Saint Pyrrus, Bishop, reposed in peace
Martyr Thespesius of Cappadocia (222)
Martyrs Ischyrion, a military officer, and five other soldiers, in Egypt (250)
The holy Ten thousand Martyrs, in Antiochia (249-251)
Martyr Firmus, under the eparch Magus (299)
Saint Metrius the Farmer of Myra in Lycia (912)
Martyrs Felinus and Gratinianus (250)
Hieromartyrs Reverianus (Bishop) and Paul (priest), with ten others, at Autun (272)
Martyr Crescentian, in Saldo near Città di Castello in Italy (287)
Martyr Proclus, at Bologna (304)
Martyr Secundus, at Amelia in Umbria, when thrown into the Tiber (304)
Martyr Clarus of Acquitaine, a Bishop believed to have been sent to evangelize Aquitaine, France
Saint Fortunatus of Spoleto the Wonderworker (400)
Saint Caprasius of Lérins, Abbot (430)