There is no universal "best" time of day to trade synthetic indices.
Synthetic indices are designed to trade around the clock and are not linked to the opening and closing sessions of traditional exchanges.
Their price movements are algorithmically generated, so a particular time of day does not inherently create the same market-session effects that can occur in forex, shares or traditional stock indices.
When deciding when to trade, you may instead want to consider factors such as:
- the synthetic index you are trading;
- its volatility characteristics;
- your trading strategy;
- your risk tolerance;
- your ability to monitor open positions; and
- any scheduled platform maintenance periods.
No particular time period guarantees better trading conditions or outcomes.