(idiom) to dress before dawn and not eat until after dark, used to describe a ruler or official who is dedicated and works tirelessly on government business

(idiom) to eat late and get dressed before dawn, describing someone who is extremely busy with official duties or working very hard

(literary) to work incessantly on administrative or state duties; specifically to get dressed before dawn and eat after dark due to a heavy workload

To labor incessantly on government affairs; describes a leader who is deeply dedicated to their work. This is a shortened form of [[宵衣旰食|宵衣旰食|xiao1 yi1 gan4 shi2]].

to have a meal late in the day