と同時に details
write + at the same time as
kaku to douji ni
at the same time as; the instant that — and, in the second sense, while also being
meaning: at the same time as writing
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
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
- dictionary form
- noun
Examples
at the same time as — two events land on the same instant, the second usually planned or scheduled
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 sotsugyousurutodoujini, 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
Formation
{V}とどうじにattaches to dictionary form{N}とどうじにattaches to nounplain clause + と同時に（N・な形は であると同時に）attaches to plain clause
Related patterns
Similar
とたんに demands the second event be uncontrolled and usually surprising, so a planned consequence sounds odd after it; と同時に claims only that the two coincide and takes a deliberate, scheduled second clause happily — 卒業すると同時に就職した is normal, 卒業したとたんに就職した is not.
とともに pairs two things that move or hold TOGETHER over a stretch (時代とともに変わる — gradual, no instant), while と同時に pins both to one point on the clock and rejects a gradual reading — ×年をとると同時に体力が落ちた.