Features that matter:
- Session times in London or New York time, not server time, with automatic daylight-saving handling.
- Lines extending into the next session, so they serve as levels.
- Option to show only the current and previous sessions, to keep charts clean.
- Works on any timeframe below H1.
- Hard-coded server offsets that break when the broker changes server time.
- Sessions defined differently from what you expect, for example Asia from 22:00 or from 00:00 London.
- Heavy indicators that slow the terminal.
A small personal test of a few candidates on a demo terminal for a week is usually enough to pick one, and the comparison against manual marks will catch most problems.
Which session indicator do you use?