共此时 vs OffTime

还在掰手指算时差、怕打扰异国的亲友？还在旅行时反复换算当地时间？ 「共此时」是一款有温度的时差工具，帮你轻松管理跨时区的亲友与旅行目的地，让距离不再是沟通的阻碍，让行程期待清晰可见。 核心功能 ・亲友时差管理：添加亲友所在城市，实时查看当地时间、天气与作息状态，一眼看清谁醒谁睡 ・智能共闲时刻：自动计算双方都清醒的空闲时段，再也不怕选错联系时间 ・目的地行程：记录旅行目的地，自动倒计时出发天数，同步当地天气与时间 ・精美分享卡片：一键生成问候卡、行程卡，适配朋友圈与私信，传递心意更有仪式感 ・极简沉浸界面：日夜模式随当地时间自动切换，无广告、无冗余功能，专注核心体验 适用场景 家人、恋人、好友留学 / 工作在海外，随时掌握对方作息，避免深夜打扰 出国旅行前规划行程，倒计时出发日，提前适应当地时间 跨国协作对接，快速对齐双方工作时间，提升沟通效率 喜欢记录旅行瞬间，分享有氛围感的行程卡片 关于专业版 免费版可添加 1 个亲友 / 目的地，完整体验全部核心功能。 升级专业版，一次付费永久使用，解锁： ・无限添加亲友与目的地 ・后续所有新功能优先解锁 我们坚持极简纯净的产品理念，无广告、无强制推送、不收集多余隐私。 如果有任何建议，欢迎在 App 内反馈，我们会持续优化体验。 本应用使用 Apple 标准服务条款（EULA）：https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

When should an international meeting start? Will it be daytime or midnight when you land? World Clock helps you see local times, working hours and the best time to connect. Great for cross-border operations, international trade, remote work, study abroad, global families and business travel. [World Clock] Add the cities you care about to check live local time, time differences, working hours and contact windows. Daylight saving time is calculated automatically, and you can reorder cities by drag and drop. [Working Hours & Reminders] Set custom working hours for each city (9:00–18:00 by default), then quickly see overlapping hours between you and the other side. Add reminders for specific periods so you never miss the best window for international communication. [Time Zone Converter] Convert dates and times between any cities in seconds. Ideal for flights, meetings and business trips. Share conversion results with one tap. [Meeting Slot Recommendations] Select participating cities and get meeting times that fit everyone’s working hours. Fully overlapping slots appear first, while non-working and quiet hours are clearly marked. [Widgets] Put your world clock on the Home Screen, or on the iPhone Lock Screen, to check multiple city times without opening the app. [Offline & Private] Core features work completely offline, including in Airplane Mode, with no data upload and no third-party SDKs. Import and export city lists to migrate between devices.