ἡμέρα hēméra

Meaning

day, i.e. (literally) the time space between dawn and dark, or the whole 24 hours (but several days were usually reckoned by the Jews as inclusive of the parts of both extremes); figuratively, a period (always defined more or less clearly by the context)

In the King James Version: age, + alway, (mid-)day (by day, (-ly)), + for ever, judgment, (day) time, while, years

Derivation: feminine (with G5610 (ὥρα) implied) of a derivative of (to sit; akin to the base of G1476 (ἑδραῖος)) meaning tame, i.e. gentle;

Where it is used

• Revelation 11:9 For three and a half days all peoples and tribes and tongues and nations will view their bodies and will not permit them to be laid in a tomb.
• Revelation 11:11 But after the three and a half days, the breath of life from God entered the two witnesses, and they stood on their feet, and great fear fell upon those who saw them.
• Revelation 12:6 And the woman fled into the wilderness, where God had prepared a place for her to be nourished for 1,260 days.
• Revelation 12:10 And I heard a loud voice in heaven saying: “Now have come the salvation and the power and the kingdom of our God, and the authority of His Christ. For the accuser of our brothers has been thrown down—he who accuses them day and night before our God.
• Revelation 14:11 And the smoke of their torment rises forever and ever. Day and night there is no rest for those who worship the beast and its image, or for anyone who receives the mark of its name.”
• Revelation 16:14 These are demonic spirits that perform signs and go out to all the kings of the earth, to assemble them for battle on the great day of God the Almighty.
• Revelation 18:8 Therefore her plagues will come in one day—death and grief and famine—and she will be consumed by fire, for mighty is the Lord God who judges her.”
• Revelation 20:10 And the devil who had deceived them was thrown into the lake of fire and sulfur, into which the beast and the false prophet had already been thrown. There they will be tormented day and night forever and ever.
• Revelation 21:25 Its gates will never be shut at the end of the day, because there will be no night there.