Time Difference Distance Codes

GMT and British Summer Time Difference is 1 hour


! Currently BST (British Summer Time) is observed in the United Kingdom and IST (Irish Summer Time) is observed in Ireland in place of GMT.
! When Daylight Saving Time ends, GMT (Greenwich Mean Time) will be observed in place of British Summer Time.

  • GMT is 1 hour behind British Summer Time
  • Time in GMT
    Mon, July 6
  • Time in British Summer Time
    Tue, July 7
See British Summer Time to GMT time conversion chart
Greenwich Mean Time British Summer Time
12 am (00:00)1 am (01:00)
1 am (01:00)2 am (02:00)
2 am (02:00)3 am (03:00)
3 am (03:00)4 am (04:00)
4 am (04:00)5 am (05:00)
5 am (05:00)6 am (06:00)
6 am (06:00)7 am (07:00)
7 am (07:00)8 am (08:00)
8 am (08:00)9 am (09:00)
9 am (09:00)10 am (10:00)
10 am (10:00)11 am (11:00)
11 am (11:00)12 pm (12:00)
12 pm (12:00)1 pm (13:00)
1 pm (13:00)2 pm (14:00)
2 pm (14:00)3 pm (15:00)
3 pm (15:00)4 pm (16:00)
4 pm (16:00)5 pm (17:00)
5 pm (17:00)6 pm (18:00)
6 pm (18:00)7 pm (19:00)
7 pm (19:00)8 pm (20:00)
8 pm (20:00)9 pm (21:00)
9 pm (21:00)10 pm (22:00)
10 pm (22:00)11 pm (23:00)
11 pm (23:00)12 am (00:00) next day

Cities in Greenwich Mean Time Zone:


Aberdeen, Abidjan, Accra, Bamako, Banjul, Belfast, Birmingham (UK), Bissau, Blackburn, Blackpool, Bolton, Bournemouth, Bradford, Brighton, Bristol, Cambridge, Cardiff, Colchester, Conakry, Coventry, Crawley, Dakar, Derby, Douglas, Dublin, Dudley, Dundee, Eastbourne, Edinburgh, Exeter, Freetown, Glasgow, Gloucester, Greenwich Borough, Huddersfield, Ipswich, Kingston Upon Hull, Leeds, Leicester, Liverpool, Lome, London, Luton, Manchester, Middlesbrough, Milton Keynes, Monrovia, Newcastle Upon Tyne, Newport, Northampton, Norwich, Nottingham, Nouakchott, Oldham, Ouagadougou, Oxford, Peterborough, Plymouth, Poole, Portsmouth, Preston, Reading, Reykjavik, Rotherham, Saint Helier, Sao Tome, Sheffield, Slough, Southampton, Southend-on-Sea, St Helens, St Peter Port, Stockport, Stoke-on-Trent, Sunderland, Sutton Coldfield, Swansea, Swindon, Telford, Walsall, Watford, West Bromwich, Wolverhampton, Yamoussoukro, York,


Cities in British Summer Time Zone:


Aberdeen, Belfast, Birmingham (UK), Blackburn, Blackpool, Bolton, Bournemouth, Bradford, Brighton, Bristol, Cambridge, Cardiff, Colchester, Coventry, Crawley, Derby, Douglas, Dudley, Dundee, Eastbourne, Edinburgh, Exeter, Glasgow, Gloucester, Greenwich Borough, Huddersfield, Ipswich, Kingston Upon Hull, Leeds, Leicester, Liverpool, London, Luton, Manchester, Middlesbrough, Milton Keynes, Newcastle Upon Tyne, Newport, Northampton, Norwich, Nottingham, Oldham, Oxford, Peterborough, Plymouth, Poole, Portsmouth, Preston, Reading, Rotherham, Saint Helier, Sheffield, Slough, Southampton, Southend-on-Sea, St Helens, St Peter Port, Stockport, Stoke-on-Trent, Sunderland, Sutton Coldfield, Swansea, Swindon, Telford, Walsall, Watford, West Bromwich, Wolverhampton, York,