John 6:16

When evening came

(ως οψια εγενετο). "The late hour" (ωρα understood), and so in late Greek the adjective is used as a substantive. It is late evening (real evening), not the early evening in mid-afternoon (Matthew 14:15). The disciples were in no hurry to start back to Bethsaida in Galilee (Mark 6:45), Capernaum in John (John 6:17).