Japanese by Example
Learning through examples in manga

Limiting time with 時限

時限(じげん) combines kanji for time and limit.

Dictionary Definition

(とき)(かぎ)ること。また、(かぎ)りとして(さだ)められた時刻(じこく)

Limiting time. Also, setting the time as a limit.

Goo Dictionary

Examples

Power switch pulled by a timing device with 時限装置

名探偵コナン » Volume 3 » Page 79

Two murders on a yacht leave the passengers on edge. A blackout occurs followed by another attempted murder. This should narrow down the list of suspects to those who weren’t gathered in the dining room. However, Detective Kogoro finds the power switch had a weight tied to it by rope, with a candle having burned the rope to drop the weight. This allowed the power to be turned off unattended.

小五郎(こごろう):
一種(いっしゅ)時限装置(じげんそうち)です」
“It's a timing device of sorts.”

Timed explosion with 時限爆弾

名探偵コナン » Volume 4 » Page 89

Conan overhears Gin and Vodka discuss a bomb they’ve planted. There’s little time left for Conan to find the bomb and get it off the bullet train before it explodes. As he tries to determine who is unknowingly carrying the bomb, he thinks back to what the two had said.

ジン:
爆発(ばくはつ)時刻(じこく)は3()10(ぷん)だ...」
“The explosion time is 3:10.”
時限爆弾(じげんばくだん)ですかい?」
“Is it a time bomb?”