Pixelscan “Timezone spoofed”: what it means

Pixelscan is a free site that checks your browser fingerprint, proxy, IP and DNS leaks. Its results can say “Timezone spoofed”. Many people read this as “a tool changed my browser clock”.

Our measurements say otherwise. On 2026-11-02, Pixelscan showed “Timezone spoofed” and “Proxy detected” for stock Chrome 156. Its time zone, America/Chicago, matched the location of the proxy exit. Nothing in the browser was changed.

In our October 2026 benchmark, the result was the same on 12 proxy IPs. Every antidetect browser got the label. All 12 stock Chrome controls got it too.

So the label follows the proxy, not a spoofed clock. Read it as another way to say “proxy detected”.

What sites can really compare is the time zone of your browser and the location of your IP. Check those two values directly.

1. Turn on the proxy, then open the free AliasMode IP test. It shows your IP, its location and its time zone.
2. Read the time zone result. It compares the UTC offset of your browser zone with the offset of the IP location.
3. Pass: both are at the same offset. A proxy alone does not change this verdict.
4. Warning: the gap is two hours or less. IP locations of mobile and large providers can be off by a zone or two.
5. Fail: the gap is larger. Any site that compares the two can see it.

The full fingerprint test also checks that the zone name and the clock agree. Say the browser reports Europe/Berlin, but its clock runs at New York time. Then a tool changed one value but not the other. That is what a really spoofed time zone looks like.

To see your browser zone yourself, run this line in the developer console:

Intl.DateTimeFormat().resolvedOptions().timeZone

• Manual zone: you set the time zone by hand, or a tool set it once, and it does not fit the proxy. Set it to the proxy location, or let the profile take it from the proxy.
• Rotating proxy: the exit IP moves to another city or country, but the browser keeps the old zone. Use a static or sticky proxy for each profile, or check the location again after each change.
• Wrong IP database: the database puts the exit IP in the wrong place. This is common for mobile networks and large providers, which register big address blocks in one city. If two IP sites disagree on the location, the database is the problem, not your browser.
• System time zone: Chrome and Firefox take the time zone from the operating system. Without a setting per profile, every browser on the computer shows the same zone.