IP purity check
Test your IP as soon as the page opens: network type, native or broadcast, the SpamCop blacklist, time zone, language and WebRTC, plus how to read each result.
Browser Time Zone and IP Country Don't Match: How to Check and Fix It
How to read the time zone your browser reports, compare it with the exit country, and change it in the system or in DevTools.
1. Where the time zone a page reads comes from
JavaScript on a page can read the time zone with Intl.DateTimeFormat().resolvedOptions().timeZone. MDN describes the value as an IANA time zone name, and says the default is the runtime's default time zone when none is specified. IANA names use a region and city form, for example Europe/Brussels.
So by default the page sees the time zone your own computer uses, regardless of which country the proxy exit is in. Changing the proxy does not change the time zone.
2. How to see the time zone a page reads
You do not need to write code. The browser console is enough.
2. How to see the time zone a page reads
Open the console
in Chrome press Control+Shift+J (Command+Option+J on a Mac). The Console panel opens by default.
Read the time zone
type Intl.DateTimeFormat().resolvedOptions().timeZone, press Enter, and note the name returned, for example Asia/Shanghai.
Confirm the exit country
use the method in how to check a proxy's IP, country and ISP to see which country the exit IP is actually in.
Compare
check whether the console value is a normal time zone for that country. Countries that span several time zones, such as the United States, have more than one reasonable answer; pick the one that matches the city you are testing.
Look at the whole picture
open the IP purity check, which puts the IP location next to the browser's time zone, language and WebRTC result.
3. What a mismatch looks like on the page
When the time zone, the language and the exit country point to different places, the visible effects are usually about display:
Wrong times: promotion countdowns, order cut-offs and publish times are converted with your computer's time zone, so they differ by hours from what a local visitor sees.
Dates, language or prices look different from what you expected: many pages combine language and region settings to choose a date format and currency. If the browser language differs from the exit country, you may see one language with another country's currency.
Test results are hard to compare: when you check pages across regions, a setup that differs from the target region's local settings means screenshots and data do not show what users there actually see.
The goal is simple: make the time zone, the language and the exit country describe the same place. How a platform treats these signals is the platform's own decision, and nothing here is a guarantee.
4. Change the time zone in the operating system (for long-term use)
If you use the same exit country every day, the most reliable fix is the system time zone, because the browser uses it by default.
4. Change the time zone in the operating system (for long-term use)
Find the date and time settings
on a Mac, open System Settings, click General, then Date & Time. Apple's help page says that turning on "Set time zone automatically using your current location" makes the Mac choose the zone from where it is; to set one by hand, turn that switch off first. On Windows and other systems, find the equivalent Date and Time setting.
Set the exit country's time zone
turn automatic time zone off and pick the zone that matches the exit location.
Restart the browser
quit it completely and open it again.
Check in the console
run the command from Section 2 again and confirm the returned value has changed.
5. Test temporarily in Chrome DevTools
If you only want to see how a page behaves for a region, use the location presets in DevTools.
5. Test temporarily in Chrome DevTools
Open the Sensors panel
press Control+Shift+P (Command+Shift+P on a Mac) to open the Command Menu, type sensors, choose Show Sensors, and the panel opens at the bottom.
Choose a location
in the Geolocation list pick a preset city such as Tokyo, or a custom location with longitude and latitude.
Add a preset with a time zone
open the Locations tab in Settings, click Add location, and enter a name, latitude, longitude, Timezone ID and Locale (the official example is New York with America/New_York and en-US). Save it and it appears in the Sensors location list.
Verify in the console
the official page presents these presets as a way to override geolocation and does not describe in detail how the time zone a page script reads will change, so run the Section 2 command again and trust the value it returns.
5. Test temporarily in Chrome DevTools
These settings apply only to the current DevTools session and do not change your system settings. For a lasting fix, go back to Section 4.
6. Browser profile tools and WebRTC
If you keep a separate browser profile for each account, such tools usually have their own time zone, language and WebRTC options. Set the time zone and language to match the exit country of the proxy that profile uses, and follow the tool's own documentation for the exact option names. For connecting the proxy, see browser profile proxy setup; for plain Chrome see Chrome proxy setup.
WebRTC is the other step people overlook. RFC 8828 says WebRTC traffic should not be sent through proxy servers by default; when direct internet access is allowed, WebRTC's STUN checks do not go through the proxy and can reveal the client's public IP; only the mode that forces the proxy sends WebRTC media through it. Use the WebRTC leak test to see whether the browser exposes an address outside the proxy, and test again after changing a setting.
7. Quick reference
| Item | Where to check | What to change |
|---|---|---|
| Page time is hours off from the target region | Run the time zone command in the console | Set the system time zone to the exit country's, or test temporarily in DevTools |
| Date format, language or prices differ from what you expect | The console value, compared with the exit country | Align the browser language and system time zone with the exit country |
| WebRTC test shows an address outside the proxy | WebRTC leak test | Adjust WebRTC in the browser or profile tool, then test again |
| The exit is not in the country you expected | Check proxy IP location | Re-check that host, port, username and password were entered correctly |
| Time is unchanged after switching proxy | The console value did not change | The time zone does not follow the proxy; change it manually as in Section 4 |
The time zone read comes from MDN, the DevTools steps from Chrome's official documentation, the system setting path from Apple's help page and the WebRTC behavior from RFC 8828.
7. Quick reference
If you want an exit address that stays fixed for the lease term to go with a fixed time zone and language, see Proxy302's static ISP proxies: the same IP does not change during the lease, so the time zone only needs to be set once.
How to do it with Proxy302
Proxy302 rents static ISP IPs that stay fixed for the lease term, so you set the time zone and language once for that exit.
Check the exit country with the location guide, set the matching time zone, and confirm it in the console.
How to do it with Proxy302: steps
Step 1
Open the product page that fits (static ISP, rotating residential or the ISP for AI subscriptions) and pick the region, traffic or lease term, and quantity. For per-IP products also choose HTTP or SOCKS5.
Step 2
After the proxy is generated, open My assets and copy HOST, PORT, USERNAME and PASSWORD.
Step 3
Open https://ipinfo.io/json through the proxy and check that the country and org fields (ASN and organization) are what you expected.
Step 4
Then compare network type and native or broadcast on the IP purity check page. Two tools disagreeing is normal; go by your actual use.
Prices and limits
Rotating residential starts at US$1.50 per GB on the Budget line and US$5 per GB on the Premium line; larger packages are cheaper per GB, and purchased traffic has no expiry. A static ISP IP is US$0.50 for one day or US$7.99 for 30 days, the same in every country, fixed for the lease. A datacenter IP is US$0.25 for one day or US$3.99 for 30 days. Stock changes daily, so go by the order page. The smallest purchase is 1 GB of traffic or one IP for one day. Changing IP does not lift a restriction or raise a limit; what happens to an account is up to the platform.
Proxy302 at a glance
| Item | Price | Protocols | Locations |
|---|---|---|---|
| Rotating residential | From US$1.50 per GB (Budget line); US$5 per GB (Premium line); lower per GB in larger packages | HTTP, SOCKS5 | 195+ countries and regions; state and major city on lines that support it (small towns and some connections exit at country level; no city level in Russia and Singapore) |
| Static ISP, per IP | US$0.50 for 1 day, US$7.99 for 30 days, the same in every country | HTTP or SOCKS5, chosen per IP | 30 countries on the order form; stock changes daily |
| ISP for AI subscriptions | Per 30 days: Claude 15 PTC, GPT / Grok 10 PTC, Gemini 8 PTC | HTTP or SOCKS5 | Claude: US, UK, DE, JP. GPT / Grok: US, UK, FR, JP, KR. Gemini: US, UK, FR, JP |
| Datacenter, per IP | US$0.25 for 1 day, US$3.99 for 30 days | HTTP or SOCKS5, chosen per IP | 8 countries |
Prices are in PTC, paid from the wallet; 1 PTC = US$1. There is no free trial: the smallest purchase is 1 GB of rotating residential traffic or one IP for one day. Checked on 9 November 2026.
FAQ
Why does the page still show my old time after I switch proxy?
By default the page reads the runtime's default time zone, which is your computer's, not one tied to the proxy exit IP. To make the displayed time match the exit country, change the system time zone or the time zone in your browser profile.
Do I need to restart the browser after changing the time zone?
Quit the browser completely and open it again, then run the console command. If the returned value is the target time zone, the change has taken effect.
Must the browser language match the exit country?
Not necessarily; the language should suit how you work. But if you are testing how a page looks in a region, setting the language to that region's shows the date format and currency a local visitor would see.
Does the time zone I set in DevTools last?
No. It applies only to the current DevTools session. For a lasting change, edit the system time zone.
How does the WebRTC test relate to time zone?
Both check whether the browser environment agrees with the exit IP. The time zone decides the local time a page shows; WebRTC decides whether the browser exposes another address outside the proxy. Check both together.
Read next
WebRTC leak test
Test as soon as the page opens whether WebRTC exposes a public IP other than the one websites see, and how to fix it in AdsPower, Chrome and Firefox.
Check a proxy's IP, country and ISP
Check the exit IP, country and ISP your proxy really gives you in 30 seconds — and why IP databases disagree on the city. With our own test of three lookup services.
"Proxy Detected" Message: What It Means and How to Check Your Exit IP
Look up the ASN, organization and type of your exit IP, run a WebRTC test, and keep one proxy layer.
Proxies in antidetect browsers
Set up a proxy in AdsPower, BitBrowser, GoLogin, Kameleo, Hidemium or GenLogin: one IP per profile, where each field goes, and what a failed proxy check really means.
Chrome proxy setup
Set a proxy in Google Chrome: system settings, the --proxy-server flag, why SOCKS5 with a login does not work, extensions and a check.
ISP proxies (static residential)
Fixed static ISP proxies: a residential-grade IP that stays the same for the whole term. For social accounts, stores and AI tools. HTTP and SOCKS5.
View options and pricingReference links
7
- MDN: Intl.DateTimeFormat resolvedOptions()
Official documentation · Confirmed on:
Read on 9 November 2026: timeZone is an IANA time zone name and the default is the runtime default time zone.
- Chrome DevTools: Network panel
Official documentation · Confirmed on:
Read on 9 November 2026: DevTools opens with Control+Shift+J or Command+Option+J (Mac), the Console opens by default, and the Size column is described as the resource amount transferred over the network.
- Chrome DevTools: Sensors
Official documentation · Confirmed on:
Read on 9 November 2026: the Sensors panel opens from the Command Menu with Show Sensors; the Geolocation list offers preset cities such as Tokyo, a custom location with longitude and latitude, or location unavailable. The page does not cover time zone ID or locale.
- Chrome DevTools: Locations settings
Official documentation · Confirmed on:
Read on 9 November 2026: in Settings, Locations tab, Add location takes a name, latitude, longitude, Timezone ID and Locale (example: New York, America/New_York, en-US); the saved preset appears in the Sensors location list. The page does not state how the page-visible time zone changes.
- Apple Support: Set the date and time on Mac
Official documentation · Confirmed on:
Read on 9 November 2026: open System Settings, General, Date & Time; "Set time zone automatically using your current location" makes the Mac choose the zone by its location.
- RFC 8828: WebRTC IP Address Handling Requirements
Official documentation · Confirmed on:
Read on 9 November 2026: by default WebRTC traffic should not be sent through proxy servers; when direct internet access is allowed, WebRTC STUN checks do not go through the proxy and can reveal the client public IP; only the force-proxy mode (mode 4) requires WebRTC media to be proxied.
- Proxy302 product facts and price list
Product observation · Confirmed on:
Product facts file of the site, checked 9 November 2026 against the console, the backend and the price table: products, prices in US$ (1 PTC = US$1), lease terms, protocols and ports, countries, quantity limits, no free trial.
Ready to try it?
Create an account, top up once, then pick rotating residential, static ISP or datacenter IPs and have one running in your browser within minutes.