(historical) "Day of Public Duty for the Development of Asia": the first day of every month (1939–1942), when eating at restaurants was forbidden as part of the National Spiritual Mobilization Movement (国民精神総動員運動)

(historical) development of Asia: the strengthening of an alliance of countries in Asia. Usually used in the period before World War II.

service to a master / apprenticeship / public duty, service to one's country, etc.

serve a master / apprentice / serve the public, one's country, etc.

today, this day / nowadays

Same as こんにち above

good day, good afternoon: a Japanese greeting used in the daytime

(archaic) (as for) today

one day

the seventh day of the month / seven days