N3 — outside your level filter
と同時に
とどうじにto douji niN3neutral
Same meaning4
the moment X happens; as soon as
All examples4
at the same time as — two events land on the same instant
彼は大学を卒業するとどうじに、自分の会社を立ち上げた。
kare wa daigaku o sotsugyousuru to douji ni, jibun no kaisha o tachiageta.
He started his own company at the same time as graduating from university. neutral
あのセール、開始と同時に売り切れたらしいよ。
ano seeru, kaishi to douji ni urikireta rashii yo.
That sale apparently sold out the second it opened. casual
本契約は、署名と同時に効力を生じるものといたします。
honkeiyaku wa, shomei to douji ni kouryoku o shoujiru mono to itashimasu.
This contract shall take effect at the same time as it is signed. formal
while also being — one thing is A and B at once (であると同時に)
彼女は研究者であると同時に、優れた教育者でもある。
kanojo wa kenkyuusha de aru to douji ni, sugureta kyouikusha de mo aru.
She is a researcher and at the same time an excellent teacher. neutral