01 — Server
Install the server on a computer of your choosing.
ClockBridge Server runs as a background service on any Mac on your network. Install it once and it's always ready.
Professional Stage Timing
Complex productions need a timing solution that keeps everyone in sync. ClockBridge brings the features you need and unifies every clock in your production.
Pull in timers from industry standard playback tools. Add and remove time on the fly. Control from anywhere on your network, and trigger from Companion, OSC or RossTalk.
macOS · Windows · Free during the beta
User control interface
Live display output
Clock types
Everything a live event needs to show.
Five clock types cover every timing scenario: from a presentation countdown to a live message on the presenter's confidence monitor.
23:45
Count Down
Set a duration. Counts to zero, then optionally keeps running into negative time.
04:22
Count Up
Starts at zero and counts upward. Useful for elapsed time or open-ended segments.
11:30 AM
Count to/from Time
Count down to a scheduled time, or count up from when something started.
10:48 AM
Time of Day
Shows the live clock. No controls: just the time, always accurate.
"Please wrap up, 2 minutes remaining"
Message
Display a text message in any output window. Optional auto-hide after a set duration.
Clock windows
You define the layout. Pixel by pixel.
Create named clock windows and place them anywhere on your 1920×1080 output canvas. Each window has its own position, size, font, color, and alignment, configured once and saved. Then assign timers to each window. When one ends, the next in the queue takes over automatically.
Position
X / Y in pixels: place it exactly where you need it
Size
W × H, independent per window
Font & size
Any system font, any size (200px default)
Color
Per window, with optional "share to network" for sync
Alignment
Left, center, or right within the window
LEFT
12:59:59
RIGHT
12:59:59
MESSAGE
12:59:59
BOTTOM
12:59:59
Operator workflow
You design the layout. The operator places each clock.
You configure window names, positions, sizes, and fonts once in server settings. Then during a show, the operator taps the gear on any clock and selects which window it should appear on. LEFT, RIGHT, MESSAGE, or BOTTOM: one tap, instant output.
PRESENTER 1
▼ DOWN
⚙
✕
DIRECTION
Down
Up
DISPLAY ON
LEFT
RIGHT
MESSAGE
BOTTOM
20
:
00
START
RESET
20:00
STANDBY
DISPLAY
External sources
Mirror timers from the tools you already run.
Connect ClockBridge to your existing production software. Pull a timer directly from any of these sources and display it in your windows: you control the display, not the original timer.
ProPresenter
Pull ProPresenter countdown timers directly into ClockBridge display windows
QLab
Mirror a QLab cue's elapsed or remaining time
Resolume
Link to a Resolume clip or layer timer
Pro Video Player
Display PVP playback time in any output window
Blackmagic HyperDeck
Mirror HyperDeck playback time into any display window
Other ClockBridge instances
Share timers across multiple ClockBridge servers on the same network, useful for multi-room campuses or backup machines
Latency offset — every external source supports a configurable offset to compensate for network or signal delay, keeping your displayed time frame-accurate.
Audio cues
Keep your eyes on the room.
ClockBridge can announce "Five minutes remaining", "Two minutes", "One minute", "Thirty seconds", then count down the final five seconds out loud. Route this to your comms system or the control room speakers for the whole crew to hear.
05:00
"Five minutes remaining"
TTS
02:00
"Two minutes remaining"
TTS
01:00
"One minute remaining"
TTS
00:30
"Thirty seconds"
TTS
00:05
"Five" · "Four" · "Three" · "Two" · "One"
TTS
02 — Control
Control from a web browser or our dedicated app.
Open the web UI on any device, or use the native Mac app for a sharper experience. Punch in the IP address of the server and you're ready to go.
03 — Integrate
Trigger from your existing control platforms.
The official Companion module gives you full timer control from any Stream Deck or hardware panel. Also integrates with OSC and RossTalk.
Server configuration
Set it up once. Operators get exactly what they need.
ClockBridge separates the server from the control UI. As the technician, you decide which features are available: turn off what your team doesn't use, enable what they need. Per-type defaults mean each new timer type behaves consistently from day one.
Changes apply globally and take effect immediately, no restart required.
| Down | Up | Time | Clock | Ext | Msg | |
|---|---|---|---|---|---|---|
| GLOBAL FEATURES | ||||||
|
Messages Allow text message timers in the control interface |
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External Sources Enable timers driven by ProPresenter, ClockBridge, or AMP sources |
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Scheduled Timers Create timers that start automatically at scheduled times |
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| PER-TYPE DEFAULTS | ||||||
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Overrun Continue counting when timer reaches zero |
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Red on overrun Display turns red when timer overruns |
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Negative display Show negative sign during overrun (e.g. -0:05) |
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Color Warnings Change display color as timer approaches zero |
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Auto-cue Automatically queue timers onto the display when started |
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Show queue in preview Display cued timers below the active clock in the preview bar |
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Auto-roll Automatically display timer when it starts running |
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Voiceover (TTS) Speak time milestones and countdowns aloud |
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Also included
More than you might expect.
Four UI skins
The control interface adapts to your environment. Same features, different visual personality.
Fluoro
Dark
Classic
Light
NDI integration
NDI output brings ClockBridge into any app that accepts an NDI source — including ProPresenter, where it integrates directly into Stage Display so your presenter sees the countdown on their confidence monitor with no extra hardware.
OSC control
Full timer control via OSC commands: integrate with QLab, Resolume, or any show control system that speaks OSC.
RossTalk input
Control timers from ProPresenter, Ross Video switchers, or any RossTalk-compatible hardware over TCP. Start, stop, reset, display, hide, mute, or unmute any timer by API ID.
LTC input
Feed SMPTE Linear Timecode into ClockBridge via audio input and use it as a timer source, with frame-accurate sync to broadcast and recording systems.
LTC display
Display the incoming LTC timecode value in any output window, in HH:MM:SS:FF format.
High Contrast mode
Cyan, magenta, and yellow color assignments for red-green colorblind operators. WCAG AA minimum across all skins.
Scheduled timer lists
Build a schedule that rebuilds your entire clock list automatically: every weekly show, every Monday all-hands, any recurring event.
Clock presets
Save any timer configuration as a named preset and recall it instantly. Build a library of your most-used countdowns and clocks.
Config presets
Export your entire server configuration as a preset file. Commission a new system from scratch in seconds by importing it on any machine.
Shared clock windows
Connect multiple ClockBridge instances and share clock window outputs between them. One timer, multiple display systems, all in sync.
Video end offset
Videos often have credits or a black frame at the tail end. Pause the video playback where you want the clock to finish, and use the Learn workflow to tell ClockBridge exactly when each clip's usable content ends — the countdown matches the screen, not the clip length.
Ignore list
Flag specific clips, cues, or presentations so ClockBridge skips them entirely — bumpers, stingers, and background loops won't affect your timer. Works with ProPresenter, QLab, Pro Video Player, and Resolume.
Built for the way you actually run a show.
ClockBridge is in open beta. Two steps and you're running.
Step 2
Download the app
The Server needs your activation key. The User app and the Companion module don't.
macOS 12+ · Windows · Setup guide