午後・午后|ごごgogo[1]atamadaka (head-high)

1. noun, adverbafternoon; p.m.
   その急行きゅうこうは午後ごご六ろく時じ三十さんじゅう分ふん着ぎだ。↗

   The express arrives at 6:30 p.m.

• SynonymアフタヌーンNeutralLoanword meaning the afternoon, also an afternoon dress; mostly seen in compounds such as 「アフタヌーンティー」.
• Related昼ひるCasualColloquial word for noon or the daytime, also lunch as in 「昼ご飯」; 「午後」 covers only the time after noon, so their ranges differ.
• Antonym午前ごぜんNeutralThe counterpart of 「午後」, covering midnight to noon; in everyday speech it usually just means the morning.

「午後」 is the default for the afternoon or p.m. Use 「昼」 for noon or the daytime, and for lunch; 「アフタヌーン」 mainly turns up in compounds. 「午前」 is the opposite: morning, a.m.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 正午しょうごから午前ごぜん零れい時じまで。
2. （口語こうご的てき用法ようほう）正午しょうごから日没にちぼつまで。