DATA, ADS & AFFILIATES

Clear about data
and commercial relationships.

See what data we use, how ads and affiliates work, and how we handle privacy—all in one place.

TRANSPARENCY STANDARDCore calculations stay independent.

Answer firstNo ad between input and the primary result.
Sources shownTime and rate sources are disclosed.
Affiliates labelledCommission-earning links are clearly marked.

01 · DATA SOURCES

Data behind the calculations

You should be able to verify where an answer comes from.

TIME CALCULATIONS

IANA Time Zone Database

STANDARD

City calculations use IANA identifiers and the rules bundled with browser and server runtimes, including daylight-saving and regional changes.

Coversoffset · date · DSTNoteurgent rule changes may take time to propagate

View IANA time-zone data

EXCHANGE RATES

Coinbase Exchange Rates API

UP TO 5 MIN CACHE

We obtain one-unit conversion values and may cache them for up to five minutes. Displayed rates are informational only.

Transactionsbank, card and remittance rates may differNot includedspreads · provider fees

Coinbase exchange-rate API

02 · COMMERCIAL RELATIONSHIPS

How ads and affiliates work

Monetization never changes the independence of the calculation.

Result-first placement

Ads are never placed between inputs and the primary result, or where they interrupt use.

Clear affiliate labels

Some links may earn us a commission after a purchase. Those relationships are clearly labelled.

Independent results

Advertisers and partners cannot alter time or exchange-rate results or recommendation order.

How Google advertising cookies work Manage ad personalization

03 · PRIVACY

No account, only what is needed

We do not combine entered cities, dates, or times with account identity. Language and hour format may be stored locally in your browser.

Non-identifying usage events and error data may be collected.
If ads are enabled, third parties may use cookies for delivery and measurement.
A consent interface is provided where legally required.

Google AdSense disclosure requirements

04 · OPEN SOURCE

Open-source assets

Flags and interface icons come from established open-source projects. Copyright and trademark rights remain with their owners.

flag-icons 7.5.0MIT LicenseGitHub Lucide React 1.24.0ISC · MITWebsite

Last updated: July 14, 2026