Contact

Corrections and partnership requests

If a hotel season note, event date, transport detail, or policy explanation needs updating, please send the affected page and the source you recommend. Providing information is voluntary; please do not send passport numbers, government ID, payment data, health records, or other sensitive personal information by email.

• Email: hello@whenjapan.com
• Partnerships: Japan travel brands related to hotels, transport, eSIMs, insurance, and experiences can contact us by email.
• Corrections: Please include the source link, affected page, and suggested update.
• Privacy / legal: Use the same email for access, correction, deletion, cookie, advertising, or legal notices. The Site operator uses WhenJapan / Japan Travel Comfort Calculator as its public operating name.

How we handle your enquiry

Providing information is voluntary. We use your email address and message to reply, verify corrections and handle rights or legal requests; without a reply address we may be unable to respond. Email and hosting providers may process the correspondence to deliver and store it. Details of retention, access and correction requests are in our Privacy Policy. We do not treat sending an enquiry as consent to publish your personal details or a testimonial.

Copyright or other rights concerns

Please identify the affected page, the work or right concerned and your authority to raise the issue. Include a reply address and only the evidence needed for review. Do not send identity documents or private third-party records unless specifically needed and requested.