The data is provided in GMT. You must manually adjust this if your broker uses a different offset (like GMT+2).
With bid/ask tick data, you can simulate realistic order fills. For example: "If my signal triggered at 10:00:05.123, what was the actual spread and available depth?" dukascopy+historical+data
Allows traders to account for the reality of order execution delays. The Swiss Advantage: Transparency and Regulation The data is provided in GMT
Dukascopy uses an Electronic Communication Network (ECN) model. Their historical data is not a single bank's feed but an aggregated stream of liquidity from multiple Tier-1 banks. This makes the data more realistic than single-source feeds. dukascopy+historical+data