다대구 vs Second

다대구는 대구시 시민들에게 편리한 서비스를 제공하는 블록체인 기술 기반 통합 모바일 신원증명 서비스입니다. 한 번의 본인확인으로 대구ID를 발급받아 대구시의 다양한 서비스를 연계해서 이용할 수 있습니다. [주요기능] - 스마트 로그인 서비스 : 대구시 홈페이지, 승용차 요일제, 민원공모 홈서비스, 대구광역시 버스정보시스템 등 - 신청/출입 서비스 : 대구마라톤대회 NFT, 사랑의 그린PC, 대학생 인턴 신청, 통합전산센터 방문예약 등 - 디지털신분증 : 도서관회원증, 자원봉사자증, 건강진단결과서(보건증) 등 - 전자증명서 : 주민등록표등본, 건강보험 자격득실확인서 등 정부전자증명서 발급

Precise server time, at a glance. Second-Sync is a time synchronization tool for moments where one second matters, such as course registration and ticketing. It multi-samples the HTTP Date of your chosen site and aligns the difference from the server clock down to milliseconds. Drift tracking maintains accuracy over time, while the PiP timer lets you watch live server time even when using other apps. Key features - Precise synchronization: collects HTTP Date in parallel at least 30 times, then calculates the offset after RTT compensation, outlier removal, and EMA smoothing. - Drift estimation: runs linear regression on measured samples to track the slope of the device clock and maintain accuracy as time passes. - PiP timer: opens a Picture in Picture timer as a companion app, so you can monitor the server clock live while using a browser or other apps. - Example site shortcuts: quick buttons to load course registration pages for major Korean universities and ticket booking sites. - Multilingual support: supports Korean, English, Japanese, and Simplified Chinese, with a separate in-app language setting. Recommended for - Anyone who wants exact server time in situations where it is critical, such as registration, ticketing, or reservations. - Anyone who wants to keep accurate server time visible on iPhone or iPad while booking on the go. Notes - Synchronization may fail on sites that do not support the HTTP Date header. If so, enter another target server or use the example sites in the app. - Picture in Picture works only on supported devices running iOS 15 or later, including iPadOS. - Sync your server time with Second-Sync now. One button gives you stable synchronization and a PiP timer, so you do not miss the important moment!