Institute of Navigation Precise Time and Time Interval Meeting (ION PTTI) is a premier conference with a technical program designed to disseminate and coordinate PTTI information at the user level, review present and future PTTI requirements, inform government and industry engineers, technicians, and managers of precise time and frequency technology and its problems, and provide an opportunity for an active exchange of new technology associated with PTTI. This 4 days event is being organized by Institute of Navigation (ION). The venue of this event is Reston Hyatt Regency which is located in Reston, Virginia, United States of America. The event will be held from 29 January 2018, Monday to 01 February 2018, Thursday. ION PTTI 2018 will showcase a wide range of products and services related to scientific instruments sectors from the leading exhibitors. Over 20 exhibitors are expected at this event to showcase their products and services. Visitor profile of this event includes purchasers, users, developers, engineers, CEO, sales staff, scientists, business managers, researchers. The frequency of ION PTTI is annual.