Cantonese Sentence Breakdown
(n.) a day or one day; (slang) used as part of a prepositional phrase (一日都係) to blame someone (or something or 'a reason') for some negative things that have happened, all because of; owing to; thanks to (e.g. 一日都係你 means "It's all because of you" or "Thanks to you".)
三更半夜
saam1 geng1 bun3 je6
in the dead of night
so (Cantonese)
Mandarin equivalent: 这样zhèyàng [这样], like this
a final particle to express surprise
agreement
disagreement
tone of reminder or emphasis
when quoting words said by others