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Time Master II
Model 9130
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MSRP: $44.95
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[+] Overview

Time Math Calculator for TV/Radio Broadcasting, Aviation, and Athletics

The Time Master™ II is a versatile, easy-to-use time-math calculator for conversions, schedules, rate-based estimates and solving elapsed time calculations.

Instantly determine time-based costs and rates for billing and estimates. If you're in Radio and Broadcasting, use the time and stopwatch keys for accurate production/editing. Pilots and flight attendants can quickly compute flying hours. Coaches and athletes use the Time Master II Stopwatch and Timer with Split/Lap feature to track elapsed times and performance.


  • Quickly perform tedious time-math calculations in hours, minutes or seconds; hours:minutes:seconds (h:m:s), or in decimal format down to 100th of a second
  • Accurately track or schedule hours
  • Cut production costs and scheduling errors
  • Built-in stopwatch and timer with alarm
  • Ideal for time/rate estimates

For Broadcasters, Electronic Media Producers and Editors, Pilots, Flight Attendants, Travel Professionals Coaches, Athletes, Production Schedulers, Estimators, Consultants, Trainers, Speakers

[+] Details

Dedicated Functions:

  • Time-math measurement and conversion in hours, minutes or seconds; hours:minutes:seconds (h:m:s), auto-entry; or decimal format down to 100th of a second
  • Easy-to-use built-in stopwatch and timer with alarm; count-down or count-up plus 'split/lap' function with optional 'buzzer'
  • Begin/End/Duration keys for elapsed time solutions
    Easily add days (+1, +2, +3) for calculating durations of more than 24 hours
  • Rate function for time-based billing and estimates

Additional Features:

  • Mode: Toggle between modes of data entry
  • Add, subtract, multiply and divide in real-time, AM/PM or 24-hour
  • Paperless tape: Review last 20 data entries; works while built-in timer is in use
  • Preference Settings: User established calculator settings
  • Memories: Store up to ten separate values
  • Standard math calculator with +/-, +, -, ×, ÷, %, ∆%, 1/x
  • Durable and Portable


  • Easy-to-follow User's Guide
  • Long-life CR2032 battery
  • Armadillo Gear protective case
  • One-year warranty

Tech Specs

5.5 x 3.0 x 0.5" (140 x 76 x 13 mm)

Product Weights:
Product only with battery 3.2 oz. (90.8 gm)
Armadillo Gear Protective Case 3.5 oz
Product with Armadillo Gear Case 6.7 oz

One 3-volt CR2032 long-life battery

Display Type:
LCD, 8 digits

LCD Dimensions:
0.56" x 2.25" (15 mm x 57 mm)

10 digit internal accuracy

[+] Reviews
Overall Rating Full StarFull StarFull StarFull StarFull Star
4.9 out of 5 
User Reviews
did just what was needed 5 out of 5.0
User: , Chief Engineer KXRM TV of KXRM from Colorado Springs, Co
User Rating: ★ ★ ★ ★ ★
We had one for a long time .. was pleased to see it was still available.
It does just what is needed. Indispensable for broadcast industry.

Useful 5 out of 5.0
User: , Head Coach, Girls' Cross-country, Track & Field of South Windsor High School from South Windsor, Ct
User Rating: ★ ★ ★ ★ ★
Very essential to me and to my assistant coaches in determining avg. times in a race and to set target times for workouts. No other item has worked as well for me. I have been coaching for 50 years.

great product 5 out of 5.0
User: , Office Manager of Pikes Creek Site Contractors from Hunlock Creek, PA
User Rating: ★ ★ ★ ★ ★
I've been using the time master 2 & time card tabulator for years. I supply each timekeeper with one when hired.

Frames Needed 4 out of 5.0
User: , chief editor of KPJR from Westminster, CO
User Rating: ★ ★ ★ ★
I haven't purchased this one yet but I have Time Master 1. I agree with the comment below: it needs a frames unit to really be useful with editing and other video applications. But i do love it otherwise. I would also like to have dual timers: one to cout up and another counting down for segments and show times. But that's why we have stopwatches.

Great for Broadcasters! 5 out of 5.0
User: from Palm Springs, CA
User Rating: ★ ★ ★ ★ ★
handy tool when timing out programming formats and segments of movies!

Great Product 5 out of 5.0
User: from Norwalk, CT
User Rating: ★ ★ ★ ★ ★
Quick shipping...

TimeMaster II Production 5 out of 5.0
User: of Nissi productions (old) from Leonardtown, MD
User Rating: ★ ★ ★ ★ ★
The time master II is an excellent production tool. Decided to buy new, because of the calculation steps it saves in the production booth.

Frames? 5 out of 5.0
User: from LA, CA
User Rating: ★ ★ ★ ★ ★
Need to calculate frames

Good Product 5 out of 5.0
User: of American Red Cross from Peoria, IL 61605
User Rating: ★ ★ ★ ★ ★
Our staff have found this very helpful in calculating transit times.

5 out of 5.0
User: of WSAZ Television from Huntington , WV
User Rating: ★ ★ ★ ★ ★

[+] Parts & Accessories
Armadillo Gear Soft Tool Belt Case - Orange and Black Armadillo Gear Soft Tool Belt Case - Orange and Black

Nylon Armadillo Gear® Tool Belt Case is large enough to hold both a calculator and its protective cover.
Armadillo Gear Soft Tool Belt Case - Lime Green Armadillo Gear Soft Tool Belt Case - Lime Green

High visibility green tool belt case large enough to hold and protect a calculator and its protective cover.
CR2032 Battery CR2032 Battery

Replacement battery.

[+] Support Materials

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