Fixed Zone Time Zone Clocks: Precision Timekeeping for Every Workspace
By BRG Precision Products | June 18, 2026 | Time Zone Clocks
Whether you're running a command center, a global corporate headquarters, a federal operations facility, or a busy trading floor, one challenge is universal: knowing exactly what time it is across multiple locations — simultaneously and without question. BRG Precision Products' Fixed Zone Time Zone Clocks are engineered to solve that problem permanently, with lifetime accuracy that requires zero maintenance after installation.
What Is a Fixed Zone Time Zone Clock?
A Fixed Zone Time Zone Clock is a wall-mounted display that shows the current time in two or more predetermined time zones simultaneously. Each zone is permanently identified with white vinyl lettering — for example, NEW YORK, LONDON, TOKYO — and all zones are synchronized with one another down to the second.
BRG's fixed zone clocks stand apart from the competition in one important way: they are factory synchronized with the U.S. Atomic Clock before shipment and engineered to remain accurate for the entire life of the display — typically decades — without requiring any external time source, GPS antenna, network connection, or periodic manual correction.
How Accuracy Is Achieved — and Maintained
The secret to BRG's lifetime accuracy is the OCXO (Oven-Controlled Crystal Oscillator) included as standard in online-order models. An OCXO oscillator holds time to within ±1 second over 20 years of continuous operation. That level of precision eliminates the slow drift that plagues standard quartz clocks and makes BRG displays a true “set it and forget it” solution.
Critically, BRG fixed zone clocks maintain their time and zone programming through power outages. The configuration is stored in non-volatile memory, so when power returns, the clocks resume exactly where they left off — no reprogramming, no staff intervention required.
For installations that require synchronization to an external time source, BRG also offers optional receivers for GPS, NTP (network), IRIG-B, and SMPTE — giving system administrators the flexibility to tie the display into an existing enterprise time infrastructure.
The Style 661 Series: BRG’s Most Popular Fixed Zone Clock
The BRG Style 661 is the flagship of the fixed zone lineup and the most widely specified model across government, military, financial, and corporate installations. It is available in three LED digit sizes to match your facility’s viewing distance requirements:
- 1.8-inch bar segment LEDs — Ideal viewing distance up to 40 feet. Models 661A through 661GGG cover 2 to 24 time zones, including modular configurations.
- 2.5-inch bar segment LEDs — Ideal viewing distance up to 75 feet. Models 661H through 661NNN cover 2 to 24 time zones.
- 4.0-inch bar segment LEDs — Ideal viewing distance up to 100 feet. Models 661O through 661SSSS cover 2 to 24 time zones. Best suited for large open operations floors, hangars, and command centers.
All 661 models ship standard with user-changeable, multi-color LEDs — choose from Red, Blue, Green, Yellow, Magenta, Cyan, or White for any individual zone or the entire display. An IR remote control is included with every unit. For larger facilities, a long-range IR remote (100-foot range) or RF remote is available at no additional charge.
More Than Just Time: Advanced Display Capabilities
BRG fixed zone clocks can be configured at the time of purchase to display far more than just the current time in each zone. Depending on the model and display type, optional special information includes:
- Julian Day/Date (day of the year)
- Sunrise and Sunset times for any location
- ISO 8601 Work Week number
- Military Shipping Code (A–Z, no I or O)
- Air Tasking Order (ATO) day code
- Week of the Year
- Temperature (zone-specific)
- Configurable fixed numbers
Beyond the Style 661: Other Fixed Zone Options
- Style 668 — Like the 661 but with the date displayed prominently at the top of the clock.
- Style 6637 — Displays both time and date for each zone.
- Style 662 — Available in 4, 6, 8, 9, 10, 12, or 15 zone configurations.
- Style 664 — Five zones with the local time zone highlighted in the center of the display.
- Style 669 / 689 — Integrates a moving message display at the bottom of the clock for operational announcements.
- Style 300 / 368 — Vertical orientation for installations where horizontal wall space is limited.
- Style 665 / 612 — Horizontal displays with white vinyl zone labels, with or without date per zone.
GSA Contract Availability
All BRG Fixed Zone Time Zone Clocks are available to U.S. federal government customers through BRG’s GSA Multiple Award Schedule contract # 47QSMS26D002K, SIN 339950. BRG sells exclusively direct — there are no authorized third-party resellers for BRG products on GSA Advantage or any other government procurement platform. Government customers are encouraged to call or contact BRG directly for GSA pricing and lead times.
Specifying the Right Clock for Your Facility
Selecting the right fixed zone time zone clock comes down to four key questions:
- How many time zones do you need to display? BRG fixed zone clocks support 2 to 24 simultaneous zones.
- What is the maximum viewing distance? Match digit size — 1.8”, 2.5”, or 4.0” — to your room depth.
- Is a date display required? Models like the 668 and 6637 include date prominently alongside each zone’s time.
- Do you need modular expandability? BRG’s modular configurations allow multi-section clocks to be mounted end-to-end for higher zone counts.
Ready to specify the right Fixed Zone Time Zone Clock for your facility?
Browse the Full Fixed Zone Lineup →Contact BRG Sales: 866-252-2704 or 316-530-8854
