没日没夜

Traditional form:

沒日沒夜

Pinyin (reading):

méirìméiyè

Definitions:

• day and night
• regardless of the time of day or night

Characters:

• 没 - not, none, gone; to bury; to sink, to drown
• 日 - sun; day; daytime
• 没 - not, none, gone; to bury; to sink, to drown
• 夜 - night, dark; under cover of night

Traditional characters:

• 沒 - not, none, gone; to bury; to sink, to drown
• 日 - sun; day; daytime
• 沒 - not, none, gone; to bury; to sink, to drown
• 夜 - night, dark; under cover of night