Calendar Event QR Code Generator
iCalendar VEVENT Standard
Specification & Encoding Standards
iCalendar VEVENT Standard Encoding
Eliminate missed appointments and low seminar attendance by allowing participants to add your event to their personal calendar with a single scan. The event QR code encodes standard iCalendar VEVENT parameters — title, start and end timestamps, venue address, and descriptive notes. When scanned, Apple Calendar, Google Calendar, and Microsoft Outlook immediately prompt an 'Add to Calendar' confirmation sheet.
VEVENT Data Structure and Timezone Handling
We format dates and times in UTC (Zulu format YYYYMMDDTHHMMSSZ), preventing timezone conversion discrepancies across attendees visiting from different parts of the world.
Print these codes on printed wedding invitations, concert posters, academic symposium itineraries, and webinar banners.
Event Invitation Print & Timezone Standard
We format start and end timestamps in UTC notation (YYYYMMDDTHHMMSSZ). When an attendee scans the code, Apple Calendar and Google Calendar automatically convert the start time into the attendee's local device timezone.
Because VEVENT payloads include title, venue, and timestamps, print at no smaller than 1.2 inches (30 mm) square with Level M error correction for reliable attendee check-in.
Frequently Asked Questions
Does the user need to manually type the date?
No. The scanning phone's calendar engine parses the exact start and end times automatically.
Can I include meeting links like Zoom or Google Meet?
Yes, you can paste conference URLs directly into the Location or Description fields, and calendar apps will display them as clickable join links.
Related Generators and Technical Guides
Explore format-specific specifications, error correction benchmarks, and sizing rules.
vCard QR Code Generator
Create a vCard 3.0 QR code with contact name, phone, email, company, and website. Scans directly into iOS and Android address books.
Free QR Code Generator
Create custom QR codes in real-time for any URL or text. Instant high-resolution PNG and SVG vector downloads with zero watermark and no sign-up.
Best QR Code Size for Print: Optical Sizing Math
Calculate exact print dimensions using the 10:1 distance-to-size ratio rule, printer resolution requirements, and quiet zone safety margins.
QR Code Error Correction: L, M, Q & H Explained
How Reed-Solomon error correction enables QR codes to recover 7% to 30% damaged data, and how correction level impacts module density.