快乐时候,
时间快过。
难过时候,
时间难过。
When happy,
time quickly passes.
When sad,
time slowly passes.
(Thus, time in higher realms, including heavens and Pure Lands, with more happiness, passes much quicker, while time in lower realms, including those of hungry ghosts and hell-beings, with more suffering, passes much slower. Dependent on karma, perception of the speed of time and actual duration of time in each realm differ accordingly.)