TAKOBOTO

at (time / moment)
today's business will close at 7
〜で

ほんじつのえいぎょうはごごじをもってしゅうりょういたします。

The store will close today at seven o'clock.

これをもちましてほんじつのひろうえんをめでたくおひらきとあさせていただきます。

At this point I would like to open this auspicious wedding reception.

てんないかいそうのため、こんげつまつをもっていちじへいてんすることになりました。

Due to redecoration of the store, we will be closed at the end of this month.

[名]＋をもって

deltafour

This is a formal expression.

deltafour

Ref # Kanzen Master Level 1 - p7 - no.11

LR

On the difference between [womotte1] and [womotte2]
[womotte1] is a Time phrase
meaning "at" - marks beginnings, ends, or borders between times.
It is often used as a greeting to お客 with the extended form をもちまして.
[womotte2] is the method by which you do something - victory achieved via effort, announcement made via a blackboard.

Both are formal, both are NOUN + をもって
be careful.

LR

本日の営業は午後7時をもって終了いたします。

rad