 How to call:
00 - Exit code when making an international call from Guiana
249 - Sudanese country code for inbound calls
187 - Omdurman city code
00 + 249 + 187 + Local Number - International dialing code format
 World Times:
The time in Guiana is now 14:37:34 PM (02:37:34 PM)
The time in Omdurman Sudan is now 20:37:34 PM (08:37:34 PM)
 Mobile codes:
To call a mobile phone in Sudan from Guiana use the following dialing code format: 00 + 249 + 9 + The Number
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