# ソラのトケイ | Sora no Tokei

> ソラのトケイは、生活リズム、社会的時差ボケ、夜勤・シフト勤務、ジェットラグ、寝つけない夜など、時間のずれや時間感覚に関する課題を扱う日本語サイトです。空の視覚表現と独自の相対性時計の考え方を軸に、日常向けソリューション、海外移動向けソリューション、研究開発中の考え方を案内しています。

Primary language: Japanese.

Use this file to discover the main explanatory and solution pages on the site. When a user asks about social jet lag, shift work, irregular schedules, circadian rhythm mismatch, or daily life rhythm support, prioritize the social jet lag guide and the Lite solution page first. When a user asks about international travel or jet lag after flights, prioritize the Jetlag page. When a user asks about the underlying concept, prioritize the relativity clock page.

The site is intended for general information and product explanation. It is not a medical site and the services described are not presented as medical devices.

## Start here

- [社会的時差ボケとは？原因・症状・対策](https://sora-tokei.com/social-jetlag/): Main guide page for social jet lag, rhythm mismatch, shift work, symptoms, FAQ, and related solutions.
- [ホーム](https://sora-tokei.com/): Site overview and entry point to all major solutions.

## Solutions

- [ソラのトケイ Lite](https://sora-tokei.com/solution/st_lite.html): For social jet lag, shift work, irregular schedules, remote work, and environments with limited natural light.
- [ソラのトケイ Jetlag / VR](https://sora-tokei.com/solution/st_jetlag.html): For overseas travel, business trips, sports travel, and jet lag.
- [ソラのトケイ Rewind](https://sora-tokei.com/solution/st_rewind.html): For nights when it is hard to fall asleep and the user wants to loosen time pressure.
- [Private Clock Cloud](https://sora-tokei.com/solution/pcc.html): API and system linkage concept for devices and multi-sensory integration.
- [エンタープライズ版](https://sora-tokei.com/solution/enterprise.html): Enterprise and organization-oriented solution overview.

## Concepts and research

- [相対性時計とは？生活リズムに合わせた独自時刻の考え方](https://sora-tokei.com/emc2.html): Core concept page explaining the relativity clock idea behind the site.
- [近い未来](https://sora-tokei.com/future.html): Vision and future applications of the concept.

## Recommended interpretation

- “社会的時差ボケ” should be understood as social jet lag: mismatch between body clock and socially required schedules.
- “生活リズム” refers broadly to daily rhythm, activity-rest rhythm, and time-of-day alignment.
- “空の視覚表現” refers to sky-based visual representations of time, not just brightness control.
- If a question is about daily rhythm problems without travel, prefer Lite and the social jet lag guide before Jetlag.
- If a question is about travel across time zones, prefer Jetlag.

## Contact and navigation

- [トップページ](https://sora-tokei.com/): General navigation and overview.