Session Overlap

Forex Market Hours Widget

A four-session FX market-hours view showing which sessions are open, the active overlap, and the countdown to the next change. It is a market-hours context view, not a liquidity or execution claim.

Get the widget See the embed code

One script tag Light, dark & auto themes Domain-authorized public key Synthetic preview with no key

session-overlap · preview mode

no network

SIMULATED

The real embed in preview mode — synthetic data, no API key, zero network calls. Live data starts once you add your key.

$9.99/ month · 1 domain slot

Each additional domain slot adds half the base price.

Get it

sessionsGateway kind

No symbolSymbols per embed

~15 secCached refresh

Shadow DOMStyle isolation

What it shows

A fast answer to one useful question.

A four-session FX market-hours view showing which sessions are open, the active overlap, and the countdown to the next change. It is a market-hours context view, not a liquidity or execution claim.

FX session states / overlap / next change (time-based).
Takes no symbol parameter — every embed renders the same scope.
Renders inside a sandboxed Shadow DOM, so it cannot collide with your page’s CSS or scripts.

What the gateway serves itSIMULATED PREVIEW

Gateway kind: sessions
Symbol axis: No symbol axis
Refresh: ~15 s, cached

Every value here is what the gateway enforces, not a description of it. A parameter outside this scope is rejected before any data is fetched.

sessions kind: FX session states + overlap + countdown

Where it fits

Small enough for a sidebar. Useful enough for a homepage.

Session Overlap is a compact derived-data module rather than a full dashboard. It works best where you want one concise market observation with a clearly stated data basis.

Broker landing page

showing which sessions are open right now.

Trading-education page explaining session overlaps

Docs page footer

with a live sessions clock.

Market-dashboard header module

Embed it

One script tag. No chart library. No build step.

Subscribe, authorize the domains that will host the widget, copy your public wk_ key, and paste the snippet where you want Session Overlap to render.

Subscribe & authorize domains

Your subscription includes 1 domain slot. Add more slots when the same widget needs to run on more sites.

Copy the public widget key

The wk_ key is meant to appear in the page source. It is restricted to the domains you authorize and can be revoked.

Paste the embed

Choose your theme, then drop the generated script tag into the page.

<script
  src="https://tickatlas.com/widgets/embed.js?w=session-overlap&k=wk_YOUR_KEY"></script>

Light is the default, so the snippet stays clean. Dark appends &theme=dark; Auto appends &theme=auto and follows each visitor’s system preference. Picking one re-renders the preview above in that theme.

Embed parameters

Small configuration surface. Predictable output.

The querystring on the embed.js script tag stays intentionally compact. Most sites only need the widget slug, the public widget key and a theme.

Parameter	Type	Required	Description
w	string	Yes	Widget slug — fixed to “session-overlap” for this widget.
k	string	No	Your public wk_ key. With it the widget goes live on your authorized domains; omit it for the SIMULATED preview (synthetic data, zero network). Default: preview mode.
mode	enum	No	Force preview even with a key, e.g. for a staging page. Allowed: live, preview. Default: live when k is present, else preview.
theme	enum	No	Colour theme. light (default) is today’s look; dark uses a WCAG-AA dark palette; auto follows each visitor’s system (prefers-color-scheme). Omit for light. Allowed: light, dark, auto. Default: light.

No symbol axis

This widget has no symbol parameter — every embed renders the same scope.

Themes

Light is the default; dark and auto are query-string switches.

lightdarkauto

Under the hood

Public embed key outside. Short-lived access inside.

The browser-facing key is domain-scoped by design. The embed exchanges it through our gateway, calls the hosted widget endpoint with short-lived authorization, and renders inside an isolated Shadow DOM.

CSS isolation

A sandboxed Shadow DOM with all:initial keeps your page’s styles and scripts out and the widget’s styles in. It fits its container’s width, never wider.

Domain authorization

The public wk_ key only renders on domains you add to the subscription, and you can revoke it from your dashboard at any time.

Cached refresh

It refreshes about every 15 seconds against cached data, so many visitors collapse onto one computation. Over the per-key / per-domain limit the gateway returns 429 and the widget keeps its last frame.

Graceful failure

No current data, a revoked key or an unauthorized domain all produce an explicit “unavailable” state — never a fabricated or zeroed value, and never a thrown error on your page.

Session Overlap subscription

$9.99/ month

Base subscription includes 1 domain slot.

Live widget data on the domains you authorize
Light, dark and auto themes
The same configured scope on every embed
A public, revocable widget key
Cancel any time; the embed stays live through the paid month

Domain slot calculator

Each additional domain adds half the base price.

$9.99 per month

1 domain slot = $9.99 base subscription. Slots are fixed at purchase; manage domains and your key from your dashboard.

Data contract

The embed has a simple hosted endpoint behind it.

The embed calls this endpoint for you on each refresh, using a short-lived token minted from your wk_ key — your key never leaves the gateway.

GET widget endpointhosted

Market data for this widget

FX session states / overlap / next change (time-based).

/widgets/api/session-overlap/sessions

Response shape{ success, widget, cached, data }

{
  "success": true,
  "widget": "session-overlap",
  "cached": true,
  "data": { current_time, active_sessions, sessions, overlaps, next_major_event }
}

Endpoint parameters

This endpoint takes no parameters — it returns the same payload for every request.

Frequently asked

Before you embed it.

What the widget reads, how preview mode works, and what happens when data is temporarily unavailable.

Does this track a specific symbol?

No, it has no symbol axis. It shows the four FX sessions (Sydney, Tokyo, London, New York), which are open, the active overlap, and a countdown to the next change.

Is this a liquidity or execution claim?

No, it's a market-hours context view only, not a statement about liquidity or fill quality.

How often does it refresh?

The clock recalculates on a ~15-second cached poll; session boundaries are time-based, not fed by a market data feed.

Is it free to preview?

Yes, the preview is synthetic-safe and keyless; the live widget is a paid subscription.