Last Updated：2025/11/30

(properly) Half-hourly: at intervals of 30 minutes. / (inexact) Roughly (but not exactly) hourly: at intervals of around 60 minutes.

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semihourly

Source Word

semihourly

not-comparable

Japanese Meaning

厳密には30分間隔の、半時間ごとの / 概ね1時間ごと（正確ではなくおおよその1時間間隔の）

The ferry departs semihourly between 8 a.m. and 10 p.m.

フェリーは午前8時から午後10時まで30分おきに出発します。

Sense（1）

(properly) Half-hourly: at intervals of 30 minutes.

Samples were collected semihourly (on the hour and half hour) throughout the study.

Sense（2）

(inexact) Roughly (but not exactly) hourly: at intervals of around 60 minutes.