Market tools
The clock that matters is who is open, not the candle colour.
Four cash-equity style sessions — Sydney, Tokyo, London, New York — using each city’s own timezone, including daylight saving. The heatmap is overlap count, not live ATR. There is no free, keyless volatility API we trust for a marketing page, so we do not fake one.
Live · Session clock
First-party math. No third-party hours API.
Syd
07:00–16:00 Australia/Sydney
TK
09:00–18:00 Asia/Tokyo
LDN
08:00–17:00 Europe/London
NY
08:00–17:00 America/New_York
Right now
Who is on the desk
Weekend: the cash FX week is treated as closed from Friday 17:00 New York through Sunday 07:00 Sydney. Hours are educational conventions, not exchange bells.
Overlap heatmap
How many of the four sessions are open
Each cell is one UTC hour today. Darker means more sessions overlap — a teaching proxy for liquidity, not a volatility print.