London Build + Add to Google Calendar + iCal / Outlook export The event is finished. Date 15 - 16 Nov 2023 Expired! Time All Day Location Olympia London - Grand Hall Hammersmith Rd, London W14 8UX Next Event Information Delivery Specification: what is it and how should you use it? Date 24 Apr 2025 Time 11:00 am - 12:00 pm Share this event