in the week commencing vs in the week commencing on

Both phrases are correct, but "in the week commencing" is more commonly used and is considered more concise. Adding "on" after "commencing" is redundant and unnecessary.

Explained by Jennifer
Editor at TextRanch

Last updated: October 01, 2024 • 16492 views

in the week commencing

This phrase is correct and commonly used in English.

This phrase is used to indicate the starting week of an event, activity, or timeframe. It is concise and clear without the need for an additional preposition.

Show examples from the web [+]

This report will be analysed by the IAEA board of directors at a meeting in the week commencing 8 September 2003.
Can the European Council make a statement as to the success or otherwise of the UN Convention on Climate Change which was held in Montreal in Canada the week commencing 5 December last?
Parliament will adopt a resolution on the Commission's priorities during the February plenary session (week commencing 21 February 2005).
Assumes a 3 h haemodialysis session three times a week commencing at least 12 h after administration of the last dose of emtricitabine.
for a period of six weeks commencing on the first day of trading of the financial instrument where the assessment is carried out pursuant to paragraph 1(a) of this Article;
Oestrous cycles for all F1 females in cohort 1A should also be monitored for a period of two weeks, commencing around PND 75.
At 16 weeks after commencing Xolair therapy patients should be assessed by their physician for treatment effectiveness before further injections are administered.
at least one week prior to it commencing
A pre-incubation period of at least two weeks is necessary before commencing transformation studies (see section 1.8.3.2).
Should non-live vaccinations be required whilst receiving MabThera therapy, these should be completed at least 4 weeks prior to commencing the next course of MabThera
There are only two flights in the week.
And that happens most days in the week.
The rest will follow in the weeks to come.
So early in the week I noticed the bottle was empty.
I look forward to more results in the weeks immediately ahead.
In each, he arrives in the weeks before great catastrophes.
In the weeks to come, therefore, requests for information will be sent.
But it'd have to be earlier in the week.
Rebekah was so kind to me in the weeks after the beating.
In fact, Emerson Cod finished knitting a sweater vest and 2 handgun cozies in the weeks since Chuck's return.

Alternatives:

in the week starting
at the beginning of the week commencing
at the start of the week commencing
during the week commencing

in the week commencing on

This phrase is correct but less commonly used in English. The addition of "on" after "commencing" is redundant and not necessary.

This phrase is also used to indicate the starting week of an event, activity, or timeframe. However, it is less common and considered slightly less concise than "in the week commencing."

Show examples from the web [+]

This report will be analysed by the IAEA board of directors at a meeting in the week commencing 8 September 2003.
Parliament will adopt a resolution on the Commission's priorities during the February plenary session (week commencing 21 February 2005).
Can the European Council make a statement as to the success or otherwise of the UN Convention on Climate Change which was held in Montreal in Canada the week commencing 5 December last?
for a period of six weeks commencing on the first day of trading of the financial instrument where the assessment is carried out pursuant to paragraph 1(a) of this Article;
Assumes a 3 h haemodialysis session three times a week commencing at least 12 h after administration of the last dose of emtricitabine.
Oestrous cycles for all F1 females in cohort 1A should also be monitored for a period of two weeks, commencing around PND 75.
At 16 weeks after commencing Xolair therapy patients should be assessed by their physician for treatment effectiveness before further injections are administered.
at least one week prior to it commencing
A pre-incubation period of at least two weeks is necessary before commencing transformation studies (see section 1.8.3.2).
Should non-live vaccinations be required whilst receiving MabThera therapy, these should be completed at least 4 weeks prior to commencing the next course of MabThera
There are only two flights in the week.
And that happens most days in the week.
The rest will follow in the weeks to come.
So early in the week I noticed the bottle was empty.
I look forward to more results in the weeks immediately ahead.
In each, he arrives in the weeks before great catastrophes.
In the weeks to come, therefore, requests for information will be sent.
But it'd have to be earlier in the week.
Rebekah was so kind to me in the weeks after the beating.
In fact, Emerson Cod finished knitting a sweater vest and 2 handgun cozies in the weeks since Chuck's return.

Alternatives:

in the week starting on
at the beginning of the week commencing on
at the start of the week commencing on
during the week commencing on

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in the week commencing vs in the week commencing on

in the week commencing

in the week commencing on

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