English Reference
Idiom idiom

day or night


At any time; 24/7

Meaning adapted from Wiktionary, available under CC BY-SA 4.0.


SIMPLE

My phone rings day or night.

CONTEXTUAL

The emergency clinic is open day or night to help people with sudden health problems.

COMPLEX

The lighthouse keeper remained vigilant, watching the horizon day or night to ensure the safety of passing ships.


Related idioms8entries
  1. 01

    a cold day in July

    The time of occurrence of an event that will never happen.

  2. 02

    a day late and a dollar short

    Too late and too feeble to achieve the desired effect.

  3. 03

    a year and a day

    A long time.

  4. 04

    all one's born days

    One's whole life.

  5. 05

    as the day is long

    Unceasingly; very; thoroughly; to a very high degree.

  6. 06

    bad hair day

    A day when things seem to be unmanageable or go wrong.

  7. 07

    bad old days

    The past, seen as a time when things were worse.

  8. 08

    bank night

    An event where patrons are enticed to buy entry tickets into some venue, for example a movie theater, with the anticipation that they will be entered into a drawing to win an amount of money if their ticket is drawn and they are on-site at the time of the winning.

Last updated August 10, 2026