北京問日科技有限公司是國內最早、最專業的日歷軟件開發商。公司自2008年成立至今，一直致力于為全球個人及企業提供最優質的日歷軟件服務。目前，公司旗下已有以“365日歷”為核心的系列日歷產品。

    “365日歷”作為目前國內最專業的日歷軟件，提供手機版（iOS、Android）、PC版、WEB版等全平臺服務。在滿足用戶公歷、農歷、萬年歷等基本需求的同時，還采用先進的云數據同步技術為用戶提供包括日程管理、圖片日程等實用功能。2013年公司率先推出極具創新的公眾日歷和群組日歷功能，首次將生活信息整合進日歷服務，形成了以公眾日歷為依托、據有自建日歷、群組討論和評論功能的日歷平臺。目前，365日歷各平臺累計用戶超過1億。

    每天，數以億計的用戶使用我們的日歷服務，用戶的需求更激勵我們不斷完善產品功能，打造最適合中國人使用的日歷產品。我們將繼續不懈努力，用日歷豐富每天生活，用心改變你我世界。


Brief Introduction
When Co., Ltd is the earliest and most professional calendar Application software developer in China. Since its establishment in 2008, the company has been devoted to providing top-quality calendar Application software service for individuals and enterprises worldwide. Now the company has owned a series of products with 365 calendar at the core.

As the most professional calendar Application software 365 calendar provides all-platform services through mobile phone (with iOS or Android), PC, Web and other media. It not only meets users’ basic requirements on Gregorian calendar, lunar calendar and perpetual calendar, but also provides practical functions like schedule management and schedule picture by cloud computing data synchronization technology. In 2013, the company launched two innovative functions—public calendar and group calendar, which integrated the life information into the calendar and formed a platform based on the public calendar with functions of building one’s own calendar, group discussion and comment. Now the users of all the 365 calendar platforms have surpassed one hundred million.

Every day, hundreds of millions of people are using our calendar services. Their demands stimulate us to improve the functions of our products and make the most convenient calendar for everyone. With our unremitting and attentive efforts, we hope to enrich everyone’s life and change the world with 365 calendar.