one of the Four Heavenly Kings of Buddhism

the sunset glow and the lonely duck fly together, and the autumn water is the same color as the vast sky; a famous poetic line describing a harmonious and beautiful landscape

(set phrase) long summer days or endless daytime; also written as [[漫天老日|漫天老日|man4 tian1 lao3 ri4]] or [[长天老日|長天老日|chang2 tian1 lao3 ri4]]

an extremely long daytime; broad daylight