A smart alarm tuned to the rhythms that actually matter outdoors — high & low tides, sunrise & sunset, moon phases, and any combination of them.
If your best moments depend on water, light and weather — NaturalTime wakes you for exactly the right window.
Pick a place, pick a natural event, add an offset — done. Everything possible on-device stays on-device.
Ring on the next high or low tide for any coastline, minutes before or after.
Sunrise & sunset alarms computed precisely for your exact spot.
Fire on a chosen moon phase — at a fixed time or relative to the sun.
High tide at sunrise. Low tide on a full moon. Set the exact conditions you care about.
“Don't wake me at night” and working-hours windows keep alarms sensible.
No account, no ads, no tracking. Only tide lookups leave your phone.
Your surf break, dive site, trailhead or fishing spot — anywhere on Earth.
Tide, sun or moon (or a combination), with a before/after offset.
NaturalTime rings at exactly the right moment — even offline once it's set.
NaturalTime was built by two friends who share a deep connection with São Miguel — the largest island of the Azores, where ocean, sky and volcano meet.
Our lives revolve around surfing, diving, fishing, sailing and time outdoors, and we wanted a precise, reliable way to keep those moments aligned with the rhythms of nature rather than an arbitrary clock.
It's intentionally clean, respectful and community-oriented. No ads, no data harvesting. The price is kept as low as possible — only to cover data, servers and upkeep. If it's useful to you, share it with your people, in the Azores and anywhere folks still look to the sea and the sky to guide their day.
Everything you need is free. Premium is there if you want to go further.