Cookie policy
Last updated 20 September 2026
This page lists what DateUtils stores on your device and why. Cookies and browser local storage are treated the same way here.
Storage that keeps the site working
These items are set only in response to something you do, hold no personal data and do not need consent. They stay in your browser.
| Name | Purpose | Type | Lifetime |
|---|---|---|---|
dateutils:theme | Remembers your light or dark theme choice | Local storage | Until you clear it |
dateutils:first-day | Your first day of the week in calendar tools | Local storage | Until you clear it |
dateutils:calendar-weeks | Whether the calendar shows week numbers | Local storage | Until you clear it |
dateutils:world-clock:v1, dateutils:world-clock-12h | Your list of world clock places and 12/24-hour choice | Local storage | Until you clear it |
Analytics
DateUtils does not currently use analytics cookies. If analytics is added in future, it will load only after your consent and this page will be updated.
Advertising and Google's consent platform
Google AdSense shows the ads on DateUtils, and its ad code loads on every page because Google's consent management platform is delivered through it. Google may store a cookie on dateutils.com, named FCCDCF at the time of writing, to remember your consent choices; it can be set as soon as Google's consent tool loads and, when we tested it, lasted about 13 months. Once ads are served, Google and its partners may also set or read cookies (for example on the domains google.com and doubleclick.net) to deliver, limit and measure ads and, where you consent, to personalise them. For visitors in the European Economic Area, the United Kingdom and Switzerland, Google asks for consent before it stores or reads information for advertising. Names and lifetimes are controlled by Google and change over time; see how Google uses cookies.
Managing your choices
- Use the "Privacy and cookie settings" link in the footer to review or change your advertising choices where Google's consent message applies to you.
- Clear or block cookies and site data in your browser settings. Preferences listed above will then be forgotten.
- The tools work in the same way whichever choice you make.
More detail is in the privacy policy. Questions: contact@dateutils.com.