there is no logical reason for time to flow at a different rate on the moon. Earth's moon has a gravity 1/6th that of earth and that isn't enough to affect the passage of time or the perception of it let alone a slippage of 133% Doctor Whooves indicates or the 5 to 1 Eclissi indicates in his perception of how long it was from Nightmare Moon leaving the moon and his arrival. In teh case of the later maybe there was some delay between leaving the moon and arriving on Equus
there is no logical reason for time to flow at a different rate on the moon. Earth's moon has a gravity 1/6th that of earth and that isn't enough to affect the passage of time or the perception of it let alone a slippage of 133% Doctor Whooves indicates or the 5 to 1 Eclissi indicates in his perception of how long it was from Nightmare Moon leaving the moon and his arrival. In teh case of the later maybe there was some delay between leaving the moon and arriving on Equus