"It is eight o'clock."
Hello all! If you think your answer looks correct but was still marked wrong, please make sure that you didn't type ハ (katakana symbol for "ha") instead of 八(the kanji for "8"). It's a common mistake!
Why don't i need pun here? It was mandatory for ichi chi ichi pun desu for example
分 (ふん|ɸɯ.ṇ|fun) is used for minutes past the hour, in 一時一分です (いちじいちふんです|i.ʨi.ʥi.i.ʨi.ɸɯ.ṇ.de.ṣ|ichi ji ichi fun desu) it's more like "One hour and one minute (past the hour)" but for 八時です there are no minutes past the hour so it's not necessary to use 分.