Days of the Week in English: The Full Table, Abbreviations, and How to Say Them Right

There's a kind of mix-up almost every learner falls into at least once: you agree to meet on Tuesday but remember it as Thursday, and when you show up, the meeting room is empty. On paper, the two words don't look anything alike. In a fast-spoken sentence, what your ear actually catches is usually just one short sound followed by the -day ending, and your brain fills in the rest out of habit.

The seven day names belong to that group of words you learn in your very first English class and never go back to study properly. That's why so many people can spell all seven words correctly but still pronounce Wednesday as three syllables, still hesitate between on Monday and on Mondays, and still mishear the most important appointment of the week.

This page gathers all seven words into one table with IPA pronunciation and name origins, then separates out the spelling traps, the pronunciation traps, and the listening traps, because these three kinds of traps need three different fixes. When you need to combine a day of the week with a date and a month into a complete date, the article how to write dates in English picks up right where this page leaves off.

• Table of the seven days of the week
• Abbreviations and capitalization rules
• Four words that are easy to mispronounce, Wednesday tops the list
• How on Monday and on Mondays differ
• Tuesday and Thursday: the number one mishearing pair
• Everyday sentences using days of the week
• Common mistakes Vietnamese learners make
• Frequently asked questions
• Next steps

Table of the seven days of the week

The last column of this table isn't there for you to memorize. It's there because English day names aren't numbered the way Vietnamese ones are — they're named after Norse and Roman gods. Knowing that Thursday is Thor's day gives the "th" at the start of the word something to hold onto, instead of it being a random string of letters you have to memorize by rote.

Two details in this table often get skimmed over. The first: Vietnamese uses numbers, so thứ Hai is literally "day number two," while English uses proper names, so there's no number to count along — translating thứ Hai as "second day" is flat-out wrong. The second: wall calendars in the UK and the US usually put Sunday in the first column, so when someone says the first day of the week, there's a good chance they mean Sunday, not Monday.

The -day ending in all seven words is pronounced /deɪ/ when people speak carefully, but in everyday British speech it often drops down to /di/, making Monday sound almost like "mun-dee." Both ways are correct, and you need to get your ear used to both, because you don't get to pick the accent of the person sitting across from you.

The three midweek words share another feature the pronunciation table makes clear: Tuesday, Wednesday, and Thursday all have a /z/ sound right before -day, even though the spelling shows "s" or "nes." The other four words have a /d/ sound. It's a small detail, but it makes a real difference to how you sound when speaking fast.

Abbreviations and capitalization rules

Day names are always capitalized, even in the middle of a sentence. This is a hard rule, not a matter of style. Writing see you on monday in a work email is a genuine spelling mistake, not a casual way of writing, and native readers notice right away. The same rule applies to month names, so if you tend to lowercase those too, the article months in English makes the same point.

Americans tend to put a period after the abbreviation, giving Mon. and Fri., while the British usually drop the period. Both are acceptable, as long as you stick to one style within the same document. The two-letter form only shows up in tight spots like a calendar cell on your phone, and you wouldn't write it in a sentence.

There's something more important than the table above: abbreviations are for the eye, not the mouth. When you read a calendar line that says Wed 9:00 out loud, you still say "Wednesday," not "/wed/." Many learners read the abbreviation itself out loud, thinking it's a shortcut, and the sentence immediately sounds very strange.

A few related words are worth learning at the same time: weekday means the days from Monday to Friday, weekend means the last two days, midweek means the stretch around Wednesday, and fortnight means two weeks — a word very common in Britain but almost never used in the US.

Four words that are easy to mispronounce, Wednesday tops the list

If you can only fix one out of the seven words, fix Wednesday. It's pronunciation trap number one because the spelling has nine letters but the mouth only produces two syllables, and the first "d" is completely silent. Learners look at the spelling and read it literally, coming out with "wed-nes-day" in three syllables, and that's the clearest giveaway of a beginner in this whole group of words.

The silent "d" in Wednesday isn't a one-off case — it belongs to a fairly large group of English words that keep the letter without keeping the sound, like the "b" in climb or the "k" in know. If this group of words keeps tripping you up, the article silent letters in English lists the full set of patterns and explains why they're still there.

The /θ/ sound that opens Thursday is the hardest sound of all seven words for Vietnamese speakers, simply because Vietnamese doesn't have it. The natural reflex is to swap in the Vietnamese /t/ or /th/, and right at that moment Thursday slides toward Tuesday. The fastest way to practice is to stick the tip of your tongue slightly out between your teeth, blow air out without using your vocal cords, hold that position, and only then slide into the rest of the word. Tongue placement for this whole sound group is covered in the article English pronunciation.

How on Monday and on Mondays differ

A single "s" at the end completely changes the meaning of a sentence. On Monday means one specific Monday, usually the coming Monday or the Monday just past, depending on the tense of the verb. On Mondays means every Monday — a habit that repeats weekly. The sentence I teach on Monday refers to exactly one class session, while I teach on Mondays says you teach every single Monday.

The three words last, next, and this push the preposition out of the sentence. Writing on next Monday is redundant and wrong, even though it sounds perfectly natural to Vietnamese ears, since Vietnamese still says "vào thứ Hai tới" (into the coming Monday). Americans go even further and drop the preposition altogether in everyday speech, so See you Monday is a completely normal sentence — it just belongs to spoken language and shouldn't be carried into a formal email.

As for the weekend, the two sides of the Atlantic split into two camps: the British say at the weekend, Americans say on the weekend. Both sides understand each other fine, so you just need to pick one and use it consistently. If you want to use days of the week more smoothly in conversation, the article conversational English has more sample sentences for making arrangements.

Tuesday and Thursday: the number one mishearing pair

If you mispronounce a word, the listener can usually still guess what you mean. If you mishear one, you miss the meeting. Among these seven words, the pair that causes real damage is Tuesday and Thursday, and the reason isn't that you didn't study hard enough. It's that the Vietnamese sound system doesn't have a built-in marker for telling the two words apart.

The initial consonants of the two words are /t/ or /tj/, and /θ/. To Vietnamese ears, /θ/ usually gets mapped onto /t/, since that's the closest sound the mother tongue already has. When both words start with what sounds like the same sound in your head, both end in /zdeɪ/, and both show up in places where context doesn't help at all, all that's left is guessing.

A more reliable anchor is the vowel in the middle. Tuesday has /uː/, a long vowel, lips rounded, tongue pulled back. Thursday has /ɜː/, lips flat, tongue in the middle of the mouth, a darker-sounding vowel. In fast speech, the initial consonant often gets swallowed, but the vowel almost never disappears, so if you train your ear on the vowel instead of the initial consonant, your accuracy goes up noticeably.

The most effective fix for this type of error is dictation — listening to a short sentence, then writing it down word for word. It differs from listening comprehension in one decisive way: comprehension lets you guess, but when you have to write it down as text, there's nowhere to hide. If you write Thursday while the recording says Tuesday, the mistake shows up immediately and you know exactly where your ear went wrong, instead of just vaguely feeling like your listening is weak.

WELE's dictation method grades word by word, so pairs like this one can't slip through. You listen to a sentence from a library of more than 800 podcast episodes with transcripts, write it down, and the system points out exactly which word you misheard. The words you get wrong get added to a spaced-repetition review, so next week they come looking for you instead of waiting for you to remember to look for them yourself. The specifics of how to run a dictation session are in the article five steps to effective dictation practice.

And if you're not sure what level your ear is at so you can pick material that fits, the free listening level test gives you a benchmark in a few minutes. This kind of mishearing, caused by the mother tongue lacking a matching sound, goes well beyond the Tuesday and Thursday pair, and the article why Vietnamese learners have weak listening skills digs into three root causes.

Everyday sentences using days of the week

Knowing seven words with no sentences to put them in just leaves them sitting quietly in a notebook. Below are sentences you'll actually run into during a normal work week, arranged by situation rather than by difficulty.

Two playful expressions are also worth knowing, since you'll run into them in podcasts and movies. Hump day is the American nickname for Wednesday — think of it as the peak of the hill in the middle of the week; once you're over it, the rest is an easy downhill ride. TGIF stands for thank God it is Friday, used when the work week is finally over. Both belong to casual spoken language — don't put them in a job application letter.

The British also have a construction Americans rarely use: a week on Tuesday or Tuesday week, meaning the Tuesday of the week after next. If someone arranges to meet you this way and you miscalculate it as this coming week, you'll be off by a full seven days, so when in doubt, asking to confirm the exact date is the safest move.

Common mistakes Vietnamese learners make

The six mistakes below repeat so often that once you've cleaned them up, you can consider the days-of-the-week topic basically done.

1. Writing day names in lowercase. monday, friday are both wrong. Day names and month names are always capitalized at the start, no matter where they fall in the sentence.
2. Using the wrong preposition. English only accepts on before a day name. In Monday and at Monday are both wrong, even though Vietnamese says "vào thứ Hai" (literally "into Monday").
3. Keeping the preposition when last, next, or this is already there. On next Friday is redundant. Drop the on and the sentence is correct.
4. Reading Wednesday the way it's spelled. Two syllables, not three, and the first "d" is silent.
5. Adding an "s" carelessly. On Sundays is only correct when you're talking about a habit. Talking about one specific Sunday takes no "s."
6. Translating directly from Vietnamese. Thứ Hai isn't "second day," Chủ nhật isn't "master day." These seven words are proper names — learn them as whole units.

There's a subtler seventh mistake, one that shows up when you write dates: some international forms put the day of the week before the date, in the style Monday, 5 May 2026, while others drop the day of the week entirely. The rule for formal situations is that if you include the day, put it first, separate it with a comma, and don't abbreviate it. The full ordering of a date is covered in the article writing dates in English, while ordinal numbers like 5th or 21st have a full table in the article ordinal numbers in English.

Frequently asked questions

Do days of the week in English have to be capitalized?

Yes, with no exceptions. In English, the names of days, months, holidays, and languages are all capitalized at the start. Only the names of the four seasons are optional, so spring and summer written in lowercase are still correct in most writing.

How many syllables does Wednesday have?

Two syllables, /ˈwenzdeɪ/. The first "d" and the "e" right after it aren't pronounced, so the start of the word sounds exactly like "wens." If you find yourself producing three syllables, that's where the extra sound is coming from.

What's the difference between on Monday and on Mondays?

Without the "s" it's one specific Monday; with the "s" it's every Monday. The meeting is on Monday refers to one upcoming meeting, while we have meetings on Mondays says there's a meeting every single Monday.

Why is Chủ nhật called Sunday and not "day one"?

Because the two languages name days in two different ways. Vietnamese uses counting numbers, while English uses the names of celestial bodies and gods, so Sunday is the day of the Sun and Monday is the day of the Moon. There's no conversion rule between the two systems — you learn them pair by pair.

How do I stop confusing Tuesday and Thursday when listening?

Anchor on the vowel in the middle of the word rather than the initial consonant, because the initial consonant is where Vietnamese ears are weakest. Practice by listening to short sentences that contain both words and writing them down, a few sentences a day, until you can transcribe them correctly without even having to think about it.

Next steps

Read all seven words out loud right now, slowly, and pay attention to two specific things: Wednesday is only allowed two syllables, and Thursday has to start with a puff of air across the tip of the tongue. Then pick a short podcast with a transcript and write down a few sentences that mention days of the week, because that's when you find out what your ear can actually catch. Once you've got the days down solid, combine them with the material in the article how to tell time in English to set a complete appointment without getting the day or the time wrong.