Meaning of the word "a day of sorrow is longer than a month of joy" in English

What does "a day of sorrow is longer than a month of joy" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

a day of sorrow is longer than a month of joy

US /ə deɪ ʌv ˈsɑːroʊ ɪz ˈlɔːŋɡər ðæn ə mʌnθ ʌv dʒɔɪ/
UK /ə deɪ ɒv ˈsɒrəʊ ɪz ˈlɒŋɡə ðæn ə mʌnθ ɒv dʒɔɪ/
"a day of sorrow is longer than a month of joy" picture

Idiom

a proverb suggesting that time seems to pass much more slowly when one is suffering or unhappy than when one is happy

Example:
After his breakup, he realized that a day of sorrow is longer than a month of joy.
Waiting for the test results made him feel that a day of sorrow is longer than a month of joy.