also: タイマ
noun
timer; time switch
General device for measuring or controlling time, such as a kitchen timer or an automatic on/off switch.
料理中はタイマーをセットしてください。
Please set a timer while cooking.
この照明はタイマーで自動的に消えます。
This light turns off automatically with a timer.
noun
stopwatch
Specifically a stopwatch for measuring elapsed time, often used in sports or experiments.
ランニングのタイムをタイマーで計る。
I time my runs with a stopwatch.
noun
timekeeper
A person who keeps time, such as in a game or competition; less common than the device meanings.
試合のタイマーは正確に時間を管理しなければならない。
The timekeeper in a match must manage the time accurately.
noun
self-timer; delay timer
Abbreviation of セルフタイマー; used in photography for the delayed shutter release.
See also: セルフタイマー
集合写真を撮るときはタイマーを使いましょう。
Let's use the self-timer when taking a group photo.