| Flag | Code | Country | Time Difference (GMT) | Group | Comment | Internet Code |
 | 1242 | BAHAMAS (Comonwealth of the) | -5 | BCW | | bs |
 | 973 | BAHRAIN (State of) | 3 | | | bh |
 | 34 | Balaeric Islands | 1 | SPAIN | | es |
 | 880 | BANGLADESH (Peoples Republic of) | 6 | BCW | | bd |
 | 1246 | BARBADOS | -4 | BCW | | bb |
 | 1268 | Barbuda | -4 | LEE | ANTIGUA AND BARBUDA | ag |
 | 375 | BELARUS (Republic of) | 2 | | | by |
 | 32 | BELGIUM | 1 | EU, BEN, NATO | | be |
 | 501 | BELIZE | -6 | BCW | | bz |
 | 229 | BENIN (Republic of) | 1 | | | bj |
 | 1441 | BERMUDA | -4 | BRD | | bm |
 | 975 | BHUTAN (Kingdom of) | 6 | | | bt |
 | 591 | BOLIVIA (Republic of) | -4 | | | bo |
 | 387 | BOSNIA and HERZEGOVINA | 1 | | | ba |
 | 267 | BOTSWANA (Republic of) | 2 | BCW | | bw |
 | 55 | BRAZIL (Federative Republic of) | -3 | | | br |
 | 44 | Britain | 0 | UK | England - Wales | uk |
| 44/353 | British Isles | 0 | | England - Scotland - Wales - Ireland | |
 | 1284 | BRITISH VIRGIN ISLANDS | -4 | BRD | Also known as TORTOLA | vg |
 | 673 | BRUNEI DARUSSALAM | 8 | BCW | | bn |
 | 359 | BULGARIA (Republic of) | 2 | EU, NATO | | bg |
 | 226 | BURKINA FASO | 0 | | was Upper Volta | bf |
 | 95 | Burma | 6.5 | | Now named MYANMAR | mm |
 | 257 | BURUNDI (Republic of) | 2 | | | bi |