When transferring in a domain, it all depends on what type of domain or TLD (.com, .net, co.uk)
.COM, .NET and .ORG and other popular domains typically will take up to 7-10 days to transfer fully. There is a waiting period that is mandatory by ICANN and in now way or form can this be sped up to transfer sooner. For NOMINET domains like .CO.UK you can transfer immediately by purchasing the transfer from CloudFloorDNS and then changing the IPS TAG to MICROTECH. This will transfer the domain in immediately