They would have been able to request a further appeal in a future transfer window but were not allowed to register Mariga as a player in the current window, despite agreeing terms with him and a fee with his club.

BBC: Man City's ?7m deal for McDonald Mariga falls through

And the window of opportunity to bring about a transition to a democratic future for Syria is closing, and will close.

WHITEHOUSE: Press Briefing

Ms. TZIPI LIVNI (Israeli Foreign Minister): In order to dismantle Hezbollah, to take them out of the south part of Lebanon, and to prevent rearmament of Hezbollah in the future - this is a window of opportunity for the international community as for the Lebanese government.

NPR: Echoes of Israel's Occupation of Lebanon

As far as the future goes, we are going to need to redouble our efforts in this window where we have three years of paid-for fixes to work together to come up with a sensible reimbursement approach, which we pay for and fix on a more permanent basis.

WHITEHOUSE: Press Briefing on the President's Budget

Nor were they likely to in the near future, given the task ahead, and the sight from our window of the thousands of pilgrims milling around the white marble of the Grand Mosque.

CNN: Preparing to cover The Hajj

The document also suggested that the authority believes it has a 12-year retrospective window in which to make a claim and the council believes it can offset overpayments in the past against future ones.

BBC: Birmingham Council House