Difference between Till and Until: Meaning, Rules, Examples and Usage Guide

When writing, have you ever wondered whether to use till or until. This confusion is common among many of us. Since both words are used to refer to a point in time. In most situations, they can be used interchangeably without changing the meaning of a sentence. However, there are slight differences in usage, formality and preference in certain contexts. In this article, you will learn the difference between till and until, how they are used, their rules, and common mistakes.

Table of Contents

• What are Till and Until?
• What is the Difference between Till and Until?
• Till vs Until: Rules and Usage
• Common Rules for Using Till and Until
• Till and Until: Sentence Examples
• Till Now vs Until Now
• Common Mistakes Using Till and Until
• Practice Questions on Till and Until
• Frequently Asked Questions about the Difference between Till and Until

What are Till and Until?

Till and until are both words that point to a moment in time. They tell us how long something lasts, or up to what point an action continues. Both words can function as a preposition or a conjunction.

Surprisingly, till is actually the older of the two words, dating back to Old English. Until came later, having been formed by adding "un" (meaning "up to") to till. So, despite what many people believe, 'till' is not a lazy short form of ‘until’. They developed as two separate words that simply ended up meaning the same thing. 

Examples:

• We waited until the library opened.

• She studied till midnight.

• The shop will remain closed until Monday.

• They played cricket till sunset.

 

What is the Difference between Till and Until?

The main difference between till and until is in the style and formality. Until is generally considered more formal and is commonly used in academic, professional, and written English. Till, on the other hand, is slightly less formal and appears more often in everyday conversations and informal writing. Both words are grammatically correct and can usually replace each other without changing the meaning.

Overview Table: Till vs Until

Till vs Until: Rules and Usage

• Use both to show a time limit: Both till and until indicate that something continues up to a specific moment. For example, ‘The students stayed in the auditorium until the programme ended.’

• Prefer until in formal writing: In essays, reports, examinations, and professional communication, until is often preferred. For example, ‘The application portal will remain open until 30 September.’

• Use till naturally in conversation: Till is common in spoken English and informal communication. For example, ‘I'll be at the café till six o'clock’.

• Both can function as conjunctions: When introducing a clause, both words act as conjunctions. Examples: 

• Wait until the teacher arrives.

• Wait till the teacher arrives.

• Both can function as prepositions: When followed by a noun or phrase, they work as prepositions. Examples:

• The museum is closed until Friday.

• The museum is closed till Friday.

 

Common Rules for Using Till and Until

• Use them only for time, not distance or place. Till and until describe a point in time. They should not be used to describe physical distance or a location.

• Incorrect: She walked until the bus stop

• Correct: She walked to the bus stop

• Do not use them to mean 'by' a certain time. This is a mistake many learners make. If something will be completed before a specific time, use ‘by’, not till or until. For example, ‘The report will be ready by Friday’ is correct. While ‘The report will be ready until Friday’ changes the meaning entirely, as if the report stops existing after Friday.

• Avoid using the future tense in the clause that follows. When till or until introduces a clause, that clause usually takes the present tense, present perfect, or past tense, even when the overall sentence talks about the future. For example, ‘I will call you once dinner is ready’ is correct, not ‘once dinner is ready’.

• From... till/until... shows a clear start and end point. This pairing is common when describing opening hours, schedules, or duration. For example, ‘the museum is open from nine in the morning until six in the evening’.

• Till and until can start a sentence. Both words can appear at the beginning of a sentence for emphasis, as in ‘Until the results are announced, we can only guess’.

 

Till and Until: Sentence Examples

Examples with Till

• The children played outside till the streetlights came on.

• I will keep the documents safe till your return.

• We stayed at the station till the train arrived.

• The team practised till dusk.

• She waited till everyone had completed the task.

Examples with Until

• The conference continued until the final session.

• He remained in the office until the presentation was finished.

• The road will be closed until further notice.

• We cannot proceed until we receive approval.

• The students revised until the examination day.

 

Till Now vs Until Now

Another common question is the difference between till now and until now. In modern English, ‘until now’ is more widely accepted and commonly used in both spoken and written communication. While 'till now' is grammatically correct, it is less common in formal writing.

Examples:

• Until now, no solution has been found.

• Till now, nobody has reported the issue.

 

Common Mistakes Using Till and Until

Using Them with Duration Instead of an End Time

Incorrect: We waited until two hours.

Correct: We waited for two hours.

Using Informal Forms in Academic Writing

Less Appropriate: The research continued 'til December.

Better: The research continued until December.

Omitting Necessary Time References

Unclear: Stay until.

Correct: Stay until the event ends.

 

Practice Questions on Till and Until

Fill in the Blanks. 

1. The meeting has been postponed ______ next Monday. 

2. Just hang on ______ I finish this call.

3. She refused to leave ______ she got an answer.

4. We played cricket ______ it got dark.

5. The offer is valid ______ the end of this month.

Answers: 

1. Until

2. Till

3. Until

4. Till

5. Until