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When (time and dates)

Level: elementary

We use phrases with prepositions as time adverbials:

  • We use at with:
clock times: at seven o'clock at nine thirty at fifteen hundred hours  
mealtimes: at breakfast at lunchtime at teatime  
these phrases: at night at the weekend at Christmas at Easter
  • We use in with:
seasons of the year: in (the) spring/summer/autumn/winter        
years, centuries, decades: in 2009 in 1998 in the 20th century in the 60s in the 1980s
months: in January/February/March etc.        
parts of the day: in the morning in the afternoon in the evening    
  • We use on with:
days: on Monday/Tuesday/Wednesday etc. on Christmas day on my birthday
dates: on the thirty-first of July on June the fifteenth    
Be careful!

We say at night when we are talking about all of the night:

When there is no moon, it is very dark at night.
He sleeps during the day and works at night.

but we say in the night when we are talking about a specific time during the night:

He woke up twice in the night.
I heard a funny noise in the night.

We often use a noun phrase as a time adverbial:

yesterday today tomorrow
last week/month/year this week/month/year next week/month/year
last Saturday this Tuesday next Friday
the day before yesterday   the day after tomorrow
one day/week/month    
the other day/week/month    

We can put time phrases together:

We will meet next week at six o'clock on Monday.
I heard a funny noise at about eleven o'clock last night.
It happened last week at seven o'clock on Monday night.

We use ago with the past simple to say how long before the time of speaking something happened:

I saw Jim about three weeks ago.
We arrived a few minutes ago.

We use in with a future form to say how long after the time of speaking something will happen:

I'll see you in a month.
Our train's leaving in five minutes.

When (time and dates)



Hello meheee2008uiu,

I think I've understood what you mean in your sentence. Here is what I would suggest: "Furthermore, all of us committed to meeting next Monday at 6:30pm at Sylpocola Academy."

I wanted to point out that when referring to a day of the week, the preposition on is generally used. In this sentence, on was not used because when next or last precedes a day (or other period of time), generally no preposition is used. If you have questions about any other of the changes I made, please ask and we'll be happy to explain them.

Best wishes,

The LearnEnglish Team

Hi meheee2008uiu,

Furthermore, we also committed, all of we will meet in the next Monday at 6:30 p.m. at Sylpocola Academy. (original)

Furthermore, all of us committed to meeting next Monday at 6:30pm at Sylpocola Academy. (corrected)

Your original sentence is not difficult to understand, but it has some errors. First of all, the verb commit takes the preposition to after it, and then prepositions require a verb that follows in the -ing form. Verbs in the -ing form don't normally have a subject, so "all of we" is not used (also note that since of is a preposition, the object form of the pronoun must be used (us instead of we)). Since I had removed the idea of "all of us" from your sentence, I put it at the beginning, replacing "we" with "all of us". I removed the word also because it is redundant - the same idea is already expressed with the word furthermore.

I think I've explained the reasons for my changes, but if anything is unclear, please let me know!

Best wishes,

The LearnEnglish Team

Can i use in/on below

in 15 January 2013

on Thursday, 12 September 2013

Hi BoyAroma,
We say in January and in 2013 (in + months and/or years), but since 15 January is a specific date, we say on 15 January, not in.
On Thursday, 12 September 2013 is correct, because we use on for specific dates.
Best wishes,
The LearnEnglish Team

In the normal course while representing calender months, we usually say until or till June or July, does this include the month of June or July.
To elaborate further, if I am representing some revenue "upto May 2013" or "till May 2013", or "Until May 2013". Would this include or reflect figures till the end of June?
Of course , it would always be better to provide dates for the same, but if we use it in this manner would it be correct?
Appreciate your kind help on this one

Hello Ayaz and welcome to LearnEnglish.
The first point is about describing revenue. A more natural way to describe this than 'from... until' would be 'from... to...' or 'from... up to...'.  This isn't a rule about 'until' but rather an example of common use which sounds more natural.
You are right that these phrases ('from... to...' and 'from... until...') are all ambiguous in terms of the end date and this does cause problems at times.  For that reason it is a good idea to add a marker to make it clear.  There are a number of ways to do this.
One way is to say 'inclusive' at the end, showing that you are including both the start and end dates.  For example, you might say:
'this is the revenue from May to July, inclusive'.
Another way is to use the phrase 'up to and including':
'this is the revenue up to and including July'.
The opposite to this would be 'this is the revenue up to but not including July'.
I hope that clarifies it for you.
Best wishes,
The LearnEnglish Team

I have a question regarding preposition used with date. Which preposition is correct when I want to express the time with exact dates for example "from April 15 to May 11". It is:
- in the dates April 15 - May 11
- in dates April 15 - May 11
- at dates April 15 - May 11
...or something completely different? :)
Thank you for your answer and I am sorry if the comment should be in another topic :(
Have a nice day

Hello Zuzana!
Considering your example, I think using from is ok.
For example, we can say:
My training period is from April 15 to May 11. 
Our exams are from March 20 to April 10. 
I hope it is helpful.

Here is my examples could anybody choose the best answer in that question. Choose the best answer in bold letter.

  1. I sat ON / IN the couch all day .
  2. I am watching soap opera ON / IN Television everyday

Lets do the exercises. Thanks

Hi jmslayer,
I would normally choose ON for both of the examples but I can't say if that's correct.