Time Expressions & Vocabulary in English

20 key time expressions & vocabulary in English words with meanings, example sentences, and free interactive exercises — ideal for A1–A2–B1 learners.

Time vocabulary is one of the first things English learners need to master, and for good reason: every conversation about plans, schedules, deadlines, and daily routines depends on it. Unlike many vocabulary topics that stay neatly inside one subject area, time words appear in business emails, casual small talk, academic writing, and news headlines alike. Knowing words like schedule, deadline, and punctual allows learners to communicate clearly in professional situations, while understanding dawn, dusk, and midnight opens up literature, storytelling, and everyday description. Building a solid foundation in time vocabulary early on saves learners from confusion and awkward misunderstandings later.

In real life, English speakers use time expressions constantly — often without even noticing. You will hear fortnight in British English contexts such as news reports and rental agreements, while quarter turns up in business reports and financial news every few months. Words like temporary and permanent come up in job advertisements and contracts, and expire appears on passports, food labels, and software licences. Understanding the difference between an era and a decade, or between interval and duration, helps learners read more precisely and write more accurately in every context from academic essays to WhatsApp messages.

The most effective way to learn time vocabulary is to connect each word to a real situation you encounter regularly. Try keeping a small diary in English where you use time words like postpone, annual, or simultaneous to describe your actual day. Notice which words feel interchangeable (such as noon and midday) and which have very specific uses (such as century for exactly one hundred years). Using a word in a sentence you create yourself — rather than just memorising a definition — is the single biggest predictor of whether you will remember it a week later and use it correctly under pressure.

What You'll Learn

Word List

WordMeaningExample Sentence
decadea period of ten yearsThe 1990s were a decade of great change.
centurya period of one hundred yearsThe castle was built in the 12th century.
schedulea plan of activities and the times they will happenThe train schedule shows departures every 30 minutes.
deadlinethe latest time by which something must be doneThe deadline for applications is Friday.
durationthe length of time that something lastsThe duration of the flight is approximately two hours.
punctualarriving or doing something at the agreed timeShe is always punctual for meetings.
simultaneoushappening at exactly the same timeThe two explosions were simultaneous.
temporarylasting only for a short timeShe has a temporary position at the company.
permanentlasting or intended to last foreverHe found a permanent job after six months.
annualhappening once every yearThe annual report is published in January.
fortnighta period of two weeksWe go on holiday in a fortnight.
quartera period of three months; one fourth of a yearSales figures are reported every quarter.
dawnthe first light of day; the beginning of morningShe woke up at dawn to go running.
duskthe time just before it becomes completely dark in the eveningThe garden looks beautiful at dusk.
midnighttwelve o'clock at nightThe celebration started at midnight on New Year's Eve.
noontwelve o'clock in the middle of the dayThe meeting is scheduled for noon.
eraa long distinct period of historyWe live in the digital era.
intervala pause or break between periods of activityThere is a 15-minute interval between Acts 1 and 2.
postponeto arrange a later time for something plannedThe match was postponed due to bad weather.
expireto come to an end; to reach the limit of its validityMy passport expires next month.

Practice with These Exercises

Flash Cards

Review words with spaced repetition

Quiz

Test your vocabulary knowledge

Match Up

Match words to their meanings

Wordsearch

Find hidden vocabulary words

Practice What You've Learned

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Related Vocabulary Topics

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Frequently Asked Questions

What is the difference between “decade” and “century”?
A decade is exactly ten years, while a century is one hundred years. You would say “the last decade” to mean the past ten years, but “the 20th century” to refer to the years 1901–2000. Both words are used frequently in history, journalism, and everyday speech.
What does “fortnight” mean and which countries use it?
Fortnight means a period of exactly two weeks. It is common in British and Australian English but is rarely used in American English, where speakers prefer “two weeks.” You will often see it in British rental contracts, work schedules, and casual conversation.
How do you use “dawn” and “dusk” correctly?
Dawn is the very beginning of daylight in the morning, just as the sun rises. Dusk is the opposite — the dim period just after the sun sets in the evening before full darkness arrives. The phrase “from dawn to dusk” means for the entire day, from morning to evening.
What is the difference between “temporary” and “permanent”?
Temporary describes something that lasts only for a limited period of time, such as a temporary job or a temporary fix. Permanent means it is intended to last forever or for a very long time. These two adjectives are antonyms and appear frequently in employment, housing, and medical contexts.
Can “postpone” and “cancel” be used interchangeably?
No — they have important differences. To postpone means to delay something until a later time, so the event will still happen. To cancel means to stop it completely. For example, “The meeting was postponed until Thursday” means it will still take place, whereas “The meeting was cancelled” means it will not happen at all.
What does “expire” mean in everyday English?
Expire means to reach the end of a period of validity or usefulness. Passports, driving licences, food products, and subscriptions all expire. The related noun is expiry (British English) or expiration (American English), as in “expiry date” on a food package.
How is “interval” different from “duration”?
An interval is a pause or gap between two separate periods of activity, such as the interval between two acts of a play. Duration refers to the total length of time that something lasts from start to finish, such as the duration of a film. Think of interval as a break and duration as the total running time.
What is the difference between “era” and “period”?
Both words describe a span of time, but era usually implies a distinct and significant phase in history defined by a major characteristic, such as “the Victorian era” or “the digital era.” Period is more neutral and can refer to any stretch of time, long or short, such as “a period of two weeks.” Era is the more dramatic and specific of the two.
When should I use “noon” instead of “midday”?
Noon and midday both mean 12:00 in the middle of the day and can be used interchangeably in most contexts. However, noon is slightly more common in American English and in formal schedules, while midday is equally frequent in British English. Both appear in phrases like “by noon” or “the midday sun.”
Why is time vocabulary important for business English?
In professional settings, precision about time is critical. Words like schedule, deadline, punctual, annual, and quarter appear constantly in emails, reports, and meetings. Misunderstanding or misusing these terms can lead to missed deadlines, scheduling errors, or a poor impression in job interviews and the workplace.