core time: meaning, definition, pronunciation and examples

C1
UK/kɔː taɪm/US/kɔr taɪm/

Business, formal, professional

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Quick answer

What does “core time” mean?

A specific, fixed period during the standard working day when all employees of a company are required to be at work.

Audio

Pronunciation

Definition

Meaning and Definition

A specific, fixed period during the standard working day when all employees of a company are required to be at work.

The period of the working day when staff are expected to be present, forming the central, mandatory part of a flexible working hours system.

Dialectal Variation

British vs American Usage

Differences

Both British and American English use the term, with 'core hours' being a common alternative in both. No significant lexical difference.

Connotations

In both varieties, it carries connotations of organisational structure, rules, and the non-negotiable part of the workday.

Frequency

Slightly more frequent in British corporate jargon, but common in American business contexts.

Grammar

How to Use “core time” in a Sentence

The core time (is from X to Y)to have a core time ofduring + core time

Vocabulary

Collocations

strong
during core timecore time iscore time hoursmandatory core timecompany's core time
medium
set core timestrict core timeadhere to core timecore time policycore time period
weak
long core timeshort core timeflexible core timecore time schedulecore time requirement

Examples

Examples of “core time” in a Sentence

verb

British English

  • The new policy core-times staff from 10am to 3pm.
  • We are core-timed to the midday block.

American English

  • The schedule cores employees from 9am to 4pm.
  • She is core-timed during the afternoon.

adverb

British English

  • The team works core-time on Wednesdays.
  • She is available core-time only.

American English

  • We are required to be there core-time.
  • He schedules calls core-time.

adjective

British English

  • The core-time window is non-negotiable.
  • He missed the core-time meeting.

American English

  • The core-time period is strictly enforced.
  • She has core-time responsibilities.

Usage

Meaning in Context

Business

Used in HR policies, employment contracts, and team coordination discussions.

Academic

Rare; may appear in business management or organisational studies texts.

Everyday

Used by employees discussing their work schedules.

Technical

A term within human resources and workforce management systems.

Vocabulary

Synonyms of “core time”

Strong

fixed attendance period

Neutral

core hoursmandatory hours

Weak

required blockcentral working period

Vocabulary

Antonyms of “core time”

flexitimeflex hoursvariable hoursdiscretionary time

Watch out

Common Mistakes When Using “core time”

  • Using 'core time' to mean 'most important period' in a non-work context (e.g., 'the core time of the film').
  • Confusing 'core time' with 'overtime'.

FAQ

Frequently Asked Questions

No. 'Working hours' refers to the total period an employee is contracted to work. 'Core time' is a specific, mandatory subset of those hours within a flexible working system.

Yes, a company can set and adjust its core time period, but it is typically a fixed policy communicated to all staff and stated in employment contracts or handbooks.

This is typically treated as a violation of company policy, similar to absenteeism, unless prior permission (e.g., for a medical appointment) has been granted.

It depends on the company policy. Sometimes core time is defined as a continuous block including a designated lunch period; other times, lunch is explicitly excluded from core time.

A specific, fixed period during the standard working day when all employees of a company are required to be at work.

Core time is usually business, formal, professional in register.

Core time: in British English it is pronounced /kɔː taɪm/, and in American English it is pronounced /kɔr taɪm/. Tap the audio buttons above to hear it.

Phrases

Idioms & Phrases

  • to be tied to the core
  • the core of the day

Learning

Memory Aids

Mnemonic

Imagine the CORE of an apple – it's the central, essential part. CORE TIME is the central, essential part of the workday you must be present for.

Conceptual Metaphor

WORKDAY IS A STRUCTURE (with a core and flexible parts).

Practice

Quiz

Fill in the gap
Under the new flexitime scheme, you can choose your start and finish times, but you must be at your desk , which is from 10 am to 3 pm.
Multiple Choice

What is the primary purpose of 'core time' in a business context?