SkyClock - Names of the Hour

Is it dusk or twilight outside right now? See this very hour's name and the colour of its sky. No server, no ads, no account — just the sky.

A clock tells you the number. SkyClock tells you the hour's name.

SkyClock divides your day into twelve named hours — midnight, dead of night, dawn, daybreak, sunrise, morning, midday, afternoon, golden hour, dusk, evening, night — computed from the real sun at your location. The boundaries follow your actual sunrise, sunset and twilight, so when the app says "golden hour", the light outside agrees.

◆ TODAY — a living sky · A sky gradient that drifts with the real sun, the moon drawn at its true place and phase · Twinkling stars at night, the occasional shooting star, the Milky Way after dark · Sunrise, sunset, daylight length, moon phase, and a 24-hour scrubber to preview the day

◆ SKY — constellations where you point · Aim your phone and see which constellations are up in that direction, at their measured positions · Hold one on screen to earn its observation badge

◆ LEARN — between a dictionary and prose · Words for time: dawn, gloaming, the witching hour, the three twilights — meanings, origins, fine differences · Words for the sky: golden hour, blue hour, earthshine, moon halo, the Belt of Venus · A field guide to 19 constellations, the 24 solar terms of the East Asian calendar, and one new piece every day

◆ COLLECT — meetings with the real sky · Twelve time stamps, earned only by opening the app during that real hour · Special stamps: the stroke of midnight, the moment of sunrise, a full-moon night · A year-long solar-term calendar that fills in season by season · Share your collection as a card, or save it to Photos

◆ WIDGETS · Home Screen and Lock Screen widgets: the hour's name, the sun, the moon, or today's piece · Long-press any widget to choose what it shows

◆ A QUIET APP · No server, no account, no ads, no data collection · Location is used on-device only, to compute your sunrise and sunset · Works fully without location — just pick a city · In English, Korean and Japanese, each with its own culture's words for time

For people who look up before bed, writers hunting for the right word, and anyone who has ever wondered where dusk ends and night begins.