Lisa's week

lisas week teaser

Lisa's week: Quick Tip of the Week – prepositions of time

Every now and again, I’m going to give you a quick tip about a wrongly used word/s, a false friend or a typical mistake. These are the common errors I hear many times a week and which land on my mistake bingo card!

This week, it’s all about those pesky little words that we use with time. Or at least a few of them. I’m talking about prepositions and I find myself correcting the use of them on a very regular basis.

Now the thing with English grammar is that there are many irregularities which can make it difficult to learn and therefore, use correctly. But I think you’ll find that these three small words are actually quite regular and should be easier to learn. Or so the logic goes.

So, let’s have a look at using “at”, “on” and “in” with time words and see if we can bring clarity to the topic.


At + specific point in time

Here, we are talking about specific times of the day, the week or even the year. 

  • At 9am
  • At half past four
  • At 11.45
  • At night
  • At midday
  • At Christmas
  • At sunrise
  • At the moment
  • At lunchtime
  • At the same time
  • At the weekend - British English


On + specific day or date

This is used when we talk about a specific day of the week, month or year, or a specific date

  • On Monday
  • On 1st January
  • On my birthday
  • On Easter Sunday
  • On Christmas Eve
  • On Saturday evening  - here the day (Saturday) takes priority over the period of time (evening)
  • On Fridays
  • On 31st December 1999
  • On the weekend – US English


In + period of time

In is used with longer periods of time such as parts of the day, months, seasons, years

  • In the afternoon
  • In July
  • In the summer
  • In 2012
  • In the Middle Ages
  • In the past
  • In the future
  • In the 1980s

While one or two of these might seem a little strange for German speakers – for example, saying “12 o’clock at night” but “2am in the morning”, most of these follow the basic rules highlighted above which can be a relief for a lot of my students!

However, if we have an expression such as “last week”, then there is NO preposition needed. This is the same for last/next/every/this. So we would say:

  • I met John last week. (NOT: I met John in last week)
  • Let’s have the meeting next Monday.
  • She plays tennis every Friday evening
  • Call me this afternoon when I’ve got time to talk.

So, there you have it. With so many grammar rules that have my students scratching their heads, I hope you’ll agree with me that this quick tip is relatively easy to learn and use.

So, have a great time at the weekend, enjoy resting on Saturday afternoon and get up late in the morning!


What is Lisa's week?

"We’ve (hopefully) been entertaining you so far with the meaning and background of a weekly English idiom and now we’ve decided to expand that a little to give me the chance to share some details that come my way in my daily life as a Business English teacher. I hope to find weekly tidbits of information and experience to tell you about such as British traditions that I (or we) celebrate, or typical mistakes made when speaking English, or even some of the funny things I come across in my daily life. We hope that you’ll enjoy the insight into the life of a Brit in Germany!"


Episode 1: The Queen's 90th birthday

Episode 2: What did you do last Sunday?

Episode 3: What's the best way to answer?

Episode 4: The sound of London

Episode 5: Not just a last resort

Episode 6: Quick tip of the week: advice vs. advise

Episode 7: Title talk

Episode 8: The Union Jack

Episode 9: Why Thursday?

Episode 10: Quick tip of the week - Are you watching or just looking?

Episode 11: Life, Liberty and the Pursuit of Happiness

Episode 12: Don't forget to take you handy to the public viewing!

Episode 13: Up in the Highlands

Episode 14: Quick tip of the week - "Popular" false friends

Episode 15: Pie in the sky 

Episode 16: Through the tunnel

Episode 17: Keep left!

Episode 18: Quick tip of the week - Rise vs. raise vs. arise

Episode 19: How do you say that?

Episode 20: Back to School!

Episode 21: Sweet cravings

Episode 22: Can you change a fiver?

Episode 23: Grabbing some "me time"

Episode 24: Typical Mistakes (part 1)

Episode 25: Fancy a cuppa?

Episode 26: Quip tip of the week - Fell vs. fall etc.

Episode 27: Things that go bump in the night!

Episode 28: Remember, remember the fifth of November, gunpower, treason and plot

Episode 29: What's that badge you're wearing?

Episode 30: Bless you!

Episode 31: What are you thankful for?

Episode 32: Where's the larget Christmas Market outside Germany or Austria?

Episode 33: What's behind the door?

Episode 34: The joy of a Christmas cracker!

Episode 35: Does it all fit on the table?

Episode 36: Seeing in the New Year

Episode 37: How are your resolutions going?

Episode 38: Quick tip of the week - "Popular" false friends - part 2

Episode 39: What will the Year of the Rooster mean for you?

Episode 40: Sweet Valentine

Episode 41: A Reminder

Episode 42: I'll have mine with sugar and lemon juice, please!

Episode 43: The joy of golden daffodils

Episode 44: To correct or not to correct, that is the question

Episode 45: The whole world's going green!

Episode 46: Idiom of the week - Raining cats and dogs

Episode 47: The joke's on you!

Episode 48: Left over from the Middle Ages!

Episode 49: More calendar food-based ponderings

Episode 50: We use German words too

Episode 51: Celebrating St George

Episode 52: The perfect start to the day

Episode 53: The tiny apostrophe is actually something big (part 1)

Episode 54: The tiny apostrophe is actually something big (part 2)

Episode 55: The tiny apostrophe is actually something big (part 3)

Episode 56: Holiday season is coming!

Episode 57; ‘Tis the season (of Bank Holidays) – part 1

Episode 58; ‘Tis the season (of Bank Holidays) – part 2

Episode 59: Summer Solstice

Episode 60: Harry Potter turns 20

Episode 61: Quick Tip of the Week - live, life, live

Episode 62: Oh I do like to be beside the seaside

Episode 63:  I scream, you scream, we all scream for ice cream!

Episode 64: Stick a stamp on it!

Episode 65: Idiom of the week - Water under the bridge

Episode 66: I say QWERTY, you say QWERTZ

Episode 67: Doing your homework and making mistakes! (Part 1)

Episode 68: Doing your homework and making mistakes! (Part 2)

Episode 69: Joking around in Scotland

Episode 70: The first day of school

Episode 71: Let's go down to the Wiesn!

Episode 72: Celebrating language

Episode 73: It's a Harry thing!

Episode 74: My favourite time of the year

Episode 75: TED-Ideas Worth Spreading

Episode 76: Grinning like a Cheshire cat

Episode 77: Enjoying the downtime

Episode 78: Talking Tenners

Episode 79: Do you need anything from the Hight Street?

Episode 80: Just another few minutes!

Episode 81: Counting the cards on my shelf.

Episode 82: What sign are you?

Episode 83: Great if you have a sweet tooth

Episode 84: It's an acquired taste!

Episode 85: New Year's Resolutions

Episode 86: Quick Tip of the week - go/come & take/bring

Episode 87: My Luve is Like a Red Red Rose

Episode 88: Once in a blue moon

Episode 89: Learning by Listening - part 1

Episode 90: Learning by Listening - part 2

Episode 91: This is the travel news!

Episode 92: The "Beast from the East" hits Western Europe!

Episode 93: The flu hits Lisa's Week

Episode 94: Spring forward and fall back

Episode 95: Holy Week