What is the ANSO (Auto Night Shut-Off) Feature On A Clock?

If you’ve been shopping for a clock recently, you may have come across the term ANSO and wondered what it means—or whether it’s even important. Like many clock features, ANSO can sound technical or confusing at first glance. However, once you understand it, you’ll see why it’s such a valuable feature for many clock owners.

Let’s break it down in simple terms. 

What Does ANSO Mean?

ANSO stands for "Auto Night Shut-Off". As the name suggests, it’s a feature designed to automatically silence your clock from 10pm to 7am. In clocks equipped with ANSO, the chime and strike functions are programmed to turn off automatically at night and resume in the morning—without you having to manually adjust anything.

How Does Auto Night Shut-Off Work?

When ANSO is active, the clock follows a preset schedule: At night: The clock stops chiming and striking so it won’t disturb your sleep. In the morning: The clock automatically resumes normal operation, chiming on the hour as expected. This automation means you get the charm and tradition of a chiming clock during the day, with peace and quiet at night.

Why Is ANSO a Valuable Feature?

For many people, the sound of a chiming clock is part of what makes a home feel warm and classic. But those same chimes can be disruptive when you’re trying to sleep. ANSO solves this problem by offering:

• Better sleep without nighttime interruptions
• Convenience, since there’s no need to manually silence the clock each evening
• Consistency, ensuring the clock returns to normal operation every morning

 It’s especially useful for clocks placed near bedrooms, hallways, or open living spaces.

Is ANSO Right for You?

If you enjoy the sound of a chiming clock during the day but prefer quiet nights, ANSO is a feature worth looking for. Even if you don’t think you need it now, many clock owners come to appreciate Auto Night Shut-Off once they experience how seamlessly it works.

Final Thoughts

ANSO may sound like a complicated or unfamiliar term, but it’s actually a simple, thoughtful feature designed to make living with a traditional clock more comfortable. Understanding what Auto Night Shut-Off does can help you make a more informed decision when choosing the right clock for your home. If you’re considering a new clock and see ANSO listed as a feature, now you know exactly what it means—and why it matters.

SHOP Hermle clocks with ANSO (auto night shut-off) >