Immediately after the phasing action has been completed during the untap step, if the game has either the day or night designation, it checks to see whether that designation should change. If it’s neither day nor night, this check doesn’t happen. See rule 502.2.
September 24, 2021 · Innistrad: Midnight Hunt
Immediately after the phasing action has been completed during the untap step, the active player determines which permanents they control will untap. Then they untap them all simultaneously. See rule 502.3.
April 27, 2018 · Dominaria
Immediately after the phasing action has been completed during the untap step, the active player determines which permanents they control will untap. Then they untap them all simultaneously. See rule 502.2.
September 30, 2011 · Innistrad
Immediately after the phasing action has been completed during the untap step, the active player determines which permanents he or she controls will untap. Then he or she untaps them all simultaneously. See rule 502.2.
June 17, 2011 · Commander 2011
Immediately after the phasing action has been completed during the untap step, the active
February 4, 2011 · Mirrodin Besieged
Immediately after the phasing action has been completed during the untap step, the active player determines which permanents he or she controls will untap. Then he or she untaps them all simultaneously. See rule 502.2.
October 1, 2010 · Scars of Mirrodin
Immediately after the phasing action has been completed during the untap step, the active
February 1, 2010 · Worldwake
Immediately after the phasing action has been completed during the untap step, the active player determines which permanents he or she controls will untap. Then he or she untaps them all simultaneously. See rule 502.2.