24 hours in pictures

Kandahar, Afghanistan: Gordon Brown wears a helmet and body armour as he leaves 'Little Heathrow' at Kandahar Airbase Photograph: Matt Cardy/guardian.co.uk

Philadelphia, US: A navy midshipman yawns while in formation before an NCAA college football game between army and navy Photograph: Matt Slocum/guardian.co.uk

Copenhagen, Denmark: A jogger runs through a park Photograph: Adrian Dennis/guardian.co.uk

Seoul, South Korea: A snowboarder walks up a 100m-long and 34m-high temporary jump pad during a training session before the LG Snowboard Big Air FIS World Cup 2010 competition at Gwanghwamun Square Photograph: Jo Yong-Hak/guardian.co.uk

Qalat, Afghanistan: US army chaplain Father Carl Subler holds a Catholic mass on a helicopter landing pad Photograph: Scott Olson/guardian.co.uk

Sofia, Bulgaria: Activists hold candles during a silent 'Vigil for Action' demanding a fair, ambitious and binding climate agreement from the Copenhagen climate talks Photograph: Dimitar Dilkoff/guardian.co.uk

San Francisco, US: A group of Santa's wait for a train to the Santacon pub crawl Photograph: Russel A Daniels/guardian.co.uk

Denny, UK: John Cooper, 69, who has been making post boxes since he was 15 years old, starts to paint a Royal Mail pillar box at Machan Engineering Photograph: Andrew Milligan/guardian.co.uk

San Jose, US: A woman performs during the Light Festival Parade Christmas celebrations Photograph: Yuri Cortez/guardian.co.uk

Helmand province, Afghanistan: A youth stands next to a police officer near Khan Neshin Photograph: Kevin Frayer/guardian.co.uk

Higashi-Matsuyama, Japan: Capybaras relax at a bathing place at the Saitama Children's Zoo Photograph: Itsuo Inouye/guardian.co.uk

Lima, Peru: Andean women before playing a game at the national native women soccer championship Photograph: Enrique Castro-Mendivil/guardian.co.uk