The Diamond Casino update, when it launched last December, was out in GTA 5 Online between 9am and 10am UK time. For those in the other regions …
Source: When is GTA 5 Online summer update out? Date, time, Los Santos Summer Special patch
The Diamond Casino update, when it launched last December, was out in GTA 5 Online between 9am and 10am UK time. For those in the other regions …
Source: When is GTA 5 Online summer update out? Date, time, Los Santos Summer Special patch