において

において
expression
in, at (formal)
formalwrittengrammatical
1. in, at (place - formal)
Indicates a formal or abstract location where something takes place. More formal than で.
The conference will be held in Tokyo.
The entrance exam will be conducted at this school.
The bill is being deliberated in the National Diet.
2. in (field/domain - formal)
Indicates a field, area, or domain in which something applies or occurs.
There has been great progress in the field of science.
On this point, both parties are in agreement.
Equal opportunity in education is an important issue.
における is the prenominal form of において, used before nouns.
3. at (time/point - formal)
Indicates a point in time or situation when something occurs.
At this point in time, we cannot make a judgment.
Calm action is required in times of emergency.
In today's world, the internet has become indispensable to daily life.

Register: ()言葉(ことば) (written language) and formal speech — official announcements, academic writing, news. It is not used in ordinary conversation, where is the natural choice.

Formation: + おいて (from ()く, an old form of () 'to place'). The prenominal form における is used directly before a noun.

Forms

Common patterns

Vs. : において is the formal counterpart and is preferred for abstract locations, fields, and points in time; covers all the same ground in everyday language. において cannot replace the that marks means or instrument (バス(), 'go by bus').