It is celebrated 18.08.2026 according to the Julian calendar, or 31.08.2026 according to the Gregorian calendar. See what else we celebrate on that day here.
Sts. John (674) and George (683), patriarchs of Constantinople
Sainted John V was Patriarch of Constantinople from 669-674, and Sainted George I – from 678-683. They were both during the reign of the emperor Constantine Pogonatos (668-685).