FAQ
Frequently asked questions about Date Calculator
General Questions
Are all features of Date Calculator free?
Yes, all features of Date Calculator are completely free. No registration or payment is required to use all tools.
Do I need to register an account to use the tools?
No. Our tools require no registration. Just open the webpage and start using them directly.
What languages does the website support?
Currently we support Chinese and English. You can switch languages using the language selector in the top right corner.
Will my data be saved?
No. All calculations are performed locally in your browser. We do not collect or store any of your personal data.
Tool Usage
What does the "Include end date" option mean in the Date Difference Calculator?
This option controls whether to count the end date in the total. For example, from January 1 to January 3, it's 2 days without including end date, and 3 days with including it.
How is holiday data determined for workday calculations?
We use the official public holiday schedule released by the Chinese State Council, including New Year, Spring Festival, Qingming, Labor Day, Dragon Boat, Mid-Autumn, National Day, etc., and automatically handle makeup workday arrangements.
Are the zodiac and constellation shown in the Age Calculator accurate?
Yes, we use standard zodiac and constellation calculation rules. Zodiac is calculated by lunar year, and constellation by solar date.
What year range does the Lunar Calendar Converter support?
Our lunar calendar converter supports date conversion from 1900 to 2100, covering nearly 200 years of lunar calendar data.
Does the Timezone Converter support Daylight Saving Time?
Yes. Our timezone converter automatically considers the impact of Daylight Saving Time (DST) to ensure accurate conversion results.
Technical Issues
What should I do if the calculation result is inaccurate?
Please check if the date you entered is correct, especially the year, month, and day. If the problem persists, please contact us through the contact information on the About Us page.
What if the website doesn't display properly on some browsers?
We recommend using the latest versions of Chrome, Firefox, Safari, or Edge browsers for the best experience.
Can I use it on mobile phones?
Of course. Our website uses responsive design and works properly on mobile phones, tablets, and computers.
Privacy & Security
How is my privacy protected?
We take user privacy very seriously. All calculations are performed locally on your device. We do not collect, store, or transmit any of your personal data.
Does the website use cookies?
We only use necessary cookies to remember your language preference settings, not for tracking or advertising purposes.
Will my data be shared with other parties?
No. Since we do not collect user data, there is no issue of data sharing.