Time until the end of the year

This counts down to midnight at the end of 31 December, the same instant that starts New Year's Day. It is the practical deadline for annual goals, calendar-year budgets, use-it-or-lose-it leave and anything that has to be filed before the books close. Tax years are a different matter and often do not line up: the United Kingdom runs to 5 April and Australia to 30 June, so check which year end you actually need before working to this one.

The last fortnight of December is a poor time to leave anything that depends on other people. Offices in much of the world run on skeleton staffing from the 24th, banks close for several days, and a payment or a filing that needs a human at the other end may not be actioned until January even if you send it on the 30th. Annual leave that does not carry over has to be used before the date, which is why December is thin on the ground in many teams. Charitable donations, pension contributions and investment decisions tied to the calendar year often have earlier cut-offs set by the provider rather than by the year end itself. Anything you are deferring to the quiet week between Christmas and the new year is worth checking against those cut-offs first.

American health insurance deductibles and out-of-pocket maximums generally restart on 1 January, so treatment deferred from December is paid for under a fresh limit. Flexible spending balances are forfeited at the boundary unless the plan allows a grace period. Agreements that renew automatically usually require notice thirty or sixty days beforehand, which puts the real decision point in October or November. Depreciation schedules, asset registers and audit cut-offs are all struck on the closing date, and statutory accounts across much of continental Europe are drawn to it while company years in Japan and India commonly end in March instead.

The next one falls on 31 December, and this page counts down to the midnight that ends it in whatever time zone your browser reports.

The calendar year is only one of several running at once. The British tax year for individuals ends on 5 April and the corporation tax financial year on 31 March. Australia runs to 30 June, India and New Zealand to 31 March, and the American federal government to 30 September. Japanese companies overwhelmingly close at the end of March, and a British or American company may choose almost any date it likes for its own accounts. Which year end applies to you is a question with several correct answers at the same time.

The academic year adds another. Northern hemisphere schools and universities run from late summer to early summer, so their year ends in June or July and the calendar turn falls in the middle of a term. Southern hemisphere systems in Australia, New Zealand and South Africa run with the calendar instead, which is why an Australian school year ends in December and begins again in late January. Anything measured per year, from leave to budgets to allowances, has to say which year it means.