Date & time Calendar

Quarter calculator

Date

Calendar quarter —

Q1 Jan–Mar · Q2 Apr–Jun · Q3 Jul–Sep · Q4 Oct–Dec

About that date

The date —

Day of the year —

ISO week —

Day of the week —

Note Enter a date

Calendar quarters · fiscal years differ

Calendar quarters run January to March, April to June, July to September and October to December. A fiscal quarter may differ — many companies and governments run a year that starts in April, July or October instead.

How to find a quarter

1 Enter the date.

2 Read the calendar quarter.

3 Check your organisation fiscal year if it does not start in January.

4 The week number and day of year are shown too.

Fiscal years diverge widely and the mismatch causes real confusion in reporting. The UK tax year for individuals starts on 6 April, a legacy of the calendar switch in 1752. Japan and India start in April, the US federal government in October, and most companies pick whatever suits their trading cycle. "Q3" therefore means nothing without knowing whose year is being counted.

Questions

What are the calendar quarters? −

Q1 January–March, Q2 April–June, Q3 July–September, Q4 October–December.

Is a fiscal quarter the same? +

Why does the UK tax year start on 6 April? +

When does the US federal year start? +

How long is a quarter? +

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