According to the FAQ, in the weekend (Friday 00:00 - Sunday 23:59) a mark up is applied to the exchange rate as the Forex markets are closed.
Is Friday 00:00 - Sunday 23:59 the GMT/UTC (UK) timezone or in the timezone where the actual transaction was made (e.g. ATM withdrawal or Purchase)?
And, why is this Friday 00:00? Shouldn’t this be Saturday 00:00? Otherwise the markup is applied throughout all of Friday.
Furthermore, read that the FX markets close at 17:00 New York time on Friday (22:00 UK time), does this impact the mark up in anyway?