宵衣旰食 xiāo yī gàn shí

DEFINITIONS

  1. to dress before light and not eat before dark (idiom)
  2. diligently attending to official matters

CHARACTERS

宵 xiāo night, evening, dark
衣 yī clothes, clothing; cover, skin
旰 gàn sunset, dusk; evening
食 shí eat; meal; food; KangXi radical number 184