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Handling MQL5 Server Time Offsets in Trading Data Exports

Article MQL5 code base
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Summary

This diagnostic note explains how MQL5 timestamps can be misread after export. Server timestamps represent the broker's wall-clock time stored in an integer format, while common CSV consumers may interpret the same value as a true UTC epoch. Applying that assumption shifts timestamps by the broker's UTC offset, which can move bars across calendar dates and distort session-based reports without causing a parsing error.

The script compares broker server time, the time of the latest tick, actual UTC, and the local computer clock. It prints their offsets, tick lag, and optionally the latest chart bar in server and UTC time. The note advises exporting server time as wall-clock text or pairing its epoch with the measured offset so downstream tools do not apply an unintended timezone conversion. This is a data-handling diagnostic, not a trading strategy; its measurements depend on the terminal and computer clocks, and it makes no predictive claims.

Key ideas

  • MQL5 server datetimes can be mistaken for true UTC epochs by spreadsheet or Python tools.
  • That interpretation can shift timestamps by the broker's UTC offset and mislabel trading sessions.
  • The diagnostic compares server time, last-tick time, UTC, and local computer time.
  • Exports should preserve server wall-clock text or include the offset needed to interpret the epoch.
  • The script diagnoses timestamp handling and does not generate signals or place trades.

Tags

ExecutionMarket microstructureStatistics

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.