Shift Calendar Events (ICS)
Move every event in an .ics file by days, hours or minutes – e.g. to reuse last year’s schedule.
Runs entirely in your browser. Nothing is sent anywhere.
How it works
- 1Paste or type your text.
- 2Choose the options you need.
- 3Copy or download the result.
About this tool
Shift Calendar Events (ICS): Move every event in an .ics file by days, hours or minutes – e.g. to reuse last year’s schedule. Paste your text and the result appears immediately, ready to copy or download. Everything happens locally in your browser — nothing you paste is uploaded or stored.
Example
Input
BEGIN:VCALENDAR VERSION:2.0 BEGIN:VEVENT UID:a1@example.com SUMMARY:Team meeting DTSTART:20260115T090000Z DTEND:20260115T100000Z END:VEVENT BEGIN:VEVENT UID:a2@example.com SUMMARY:Launch DTSTART;VALUE=DATE:20260301 DTEND;VALUE=DATE:20260302 END:VEVENT END:VCALENDAR
Output
BEGIN:VCALENDAR VERSION:2.0 BEGIN:VEVENT UID:121gw93-a1@example.com SUMMARY:Team meeting DTSTART:20270114T090000Z DTEND:20270114T100000Z END:VEVENT BEGIN:VEVENT UID:1i83bzc-a2@example.com SUMMARY:Launch DTSTART;VALUE=DATE:20270228 DTEND;VALUE=DATE:20270301 END:VEVENT END:VCALENDAR
How do I use the Shift Calendar Events (ICS)?
Paste or type your text. Choose the options you need. Copy or download the result.
Is the Shift Calendar Events (ICS) free?
Yes. It is completely free with no sign-up, no usage limits and no watermark.
Is my data sent to a server?
No. Everything is calculated locally in your browser. Nothing you enter is uploaded, logged or stored.
Does it work on my phone?
Yes. It works in any modern browser on Android, iPhone, iPad, Windows, Mac and Linux — no app needed.