常時
Meanings
1
usually; ordinarily; at all times
Adverbial use meaning that something is normally or consistently the case. It is somewhat more formal or written than everyday いつも.
This shop usually stocks more than twenty kinds of bread.
Security guards patrol at all times.
2
noun which may take the genitive case particle 'no'
continuous; 24-hour; always on
Used before another noun or in compounds for systems, operation, care, connection, monitoring, and similar states that continue without interruption.
An always-on internet connection is required.
That patient needs constant care.
Usage patterns
- 〈物〉が常時稼働するfor a machine or system to operate around the clock
The machinery in this factory operates around the clock.
- 常時〈人〉を配置するto keep a person stationed at all times
A staff member is always stationed at the reception desk.
- 常時〈物〉を携帯するto carry something on one's person at all times
The security guard carries a radio with him at all times.
Expressions
- 常時左折可left turn permitted on red; left on red