MetaQuotes-Demo EURUSD – Historical Server Timezone and DST Rules

Hello,

I am developing a research-only EURUSD backtesting system using MetaTrader 5 Python integration and the MetaQuotes-Demo server.

Could you confirm the historical server UTC offset and daylight-saving-time rules for MetaQuotes-Demo between November 2025 and October 2026?

In particular, I need to know:

  • Whether the server used UTC+2 in winter and UTC+3 in summer.

  • Whether DST changes followed European or US transition dates.

  • Whether historical MqlTick.time_msc and Python copy_ticks_range() timestamps follow UTC or the server-time convention.

  • Whether the EURUSD quote sessions (Monday–Friday, 00:00–24:00 server time) were valid throughout this period, including any historical exceptions.

I need this information to interpret historical data correctly without modifying or discarding valid tick records.

Thank you.