Sandglass
Contact
We love to hear from you. Write to us if you have a question, found a mistake or want to suggest an improvement.
Common reasons to get in touch
- Mistakes or figures that do not look right to you.
- Suggestions for new activities, languages or features.
- Questions about privacy or about exercising your data protection rights.
- Collaboration proposals.
We do not need your date of birth or any personal data to help you: Sandglass calculations run in your browser and we have no access to them.