At sunrise, the rhythm of the five elements begins.

Every 24 minutes a different Tattwa takes over. Tatwametro calculates this rhythm for your location and shows you the golden hours, when a Tattwa and its planet vibrate together.

Now in London

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Example for London, today. In the app, your own location counts.

One-time purchase. No subscription, no ads.

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The five Tattwas

Tattva (तत्त्व) is Sanskrit for “principle” or “essence”. In the Indian tradition, five elements vibrate one after another through every day: Ether (Akasha), Air (Vayu), Fire (Tejas), Earth (Prithvi) and Water (Apas).

Each element shapes mood, energy and the favorable moments for 24 minutes. Knowing which one is active lets you choose the right moment for what you do.

  1. 1

    Akasha

    Ether

    Space, stillness, awareness

    Planet Saturn

  2. 2

    Vayu

    Air

    Movement, exchange, breath

    Planet Mercury

  3. 3

    Tejas

    Fire

    Will, strength, transformation

    Planet Sun · Mars

  4. 4

    Prithvi

    Earth

    Stability, structure, grounding

    Planet Jupiter

  5. 5

    Apas

    Water

    Feeling, flow, healing

    Planet Moon · Venus

A new energy every 24 minutes

The rhythm is simple – and different everywhere on Earth, because it hangs on sunrise.

  1. 1

    Sunrise starts the clock

    The count begins the moment the sun rises where you are.

  2. 2

    Five elements, 24 minutes each

    Akasha, Vayu, Tejas, Prithvi, Apas – always in this order.

  3. 3

    After 2 hours the round starts again

    Twelve rounds later it is sunrise again.

  4. 4

    Your location sets the times

    Sunrise shifts every day and from place to place. That is why the app needs your location.

One round = 2 hours

  1. Akasha Ether 24 min
  2. Vayu Air 24 min
  3. Tejas Fire 24 min
  4. Prithvi Earth 24 min
  5. Apas Water 24 min

× 12 rounds until the next sunrise

In the app you can swap the order of Apas and Prithvi.

Golden hours: when Tattwa and planet vibrate together

Alongside the Tattwas runs the rhythm of the planetary hours. Every Tattwa has its planet. When a Tattwa window starts in an hour ruled by its own planet, both vibrate alike: that is its golden hour. The app shows them and reminds you.

Which planet belongs to which Tattwa

  • Akasha Saturn
  • Vayu Mercury
  • Tejas Sun · Mars
  • Prithvi Jupiter
  • Apas Moon · Venus

Today in London

Tattwa
Planetary hour

    Example calculated in your browser, accurate to 1–2 minutes. The app uses your location.

    Everything the app does

    Precise enough for those who know the Tattwas, easy to follow for the curious.

    Tattwas & golden hours

    • Current Tattwa with a countdown to the next
    • Day plan of every 24-minute window
    • Golden hours for every Tattwa
    • Breathing exercise paced by the current Tattwa
    • Learn: what a Tattwa is, Tattwas & yoga, Tattwa and planet

    Planets & birth

    • Planetary hours by day and night, current planet
    • Your birth Tattwa and birth planet
    • Readings for Saturn, Jupiter, Mars, Sun, Venus, Mercury and Moon
    • Horoscope with your zodiac sign

    Moon & sun

    • Moon calendar and moon phases
    • Sunrise, sunset, solar noon and twilight
    • Save several places, update your location automatically
    • Works during polar day and polar night

    Every day

    • Notifications for Tattwa changes and golden hours, with an in-app inbox
    • Home screen widget for iOS and Android
    • Tattwa journal with mood, note and streak
    • China, Light and Dark themes, your choice of pentagram, background image and vivid card colours
    • Account with profile, delete it any time
    • In German, English and Spanish

    A look inside the app

    Real screens of the app, in the theme you picked above.

    Home in the China theme
    Home in the China theme
    The Tattwas and their planets
    The Tattwas and their planets
    Planetary hours today
    Planetary hours today
    Sunrise and sunset
    Sunrise and sunset
    Moon phases
    Moon phases
    Home in the Light theme
    Home in the Light theme
    The Tattwas and their planets
    The Tattwas and their planets
    Planetary hours today
    Planetary hours today
    Sunrise and sunset
    Sunrise and sunset
    Home in the Dark theme
    Home in the Dark theme
    The Tattwas and their planets
    The Tattwas and their planets
    Planetary hours today
    Planetary hours today
    Sunrise and sunset
    Sunrise and sunset

    Frequently asked questions

    What is a Tattwa?

    Tattva (तत्त्व) is Sanskrit for “principle”. It refers to the five elements Akasha (ether), Vayu (air), Tejas (fire), Prithvi (earth) and Apas (water), which vibrate one after another through every day.

    How long does a Tattwa last and when does the cycle start?

    Each Tattwa lasts 24 minutes. The cycle starts at sunrise where you are, in the order Akasha, Vayu, Tejas, Prithvi, Apas. One round takes 2 hours; twelve rounds later the sun rises again.

    What is a golden hour?

    Every Tattwa has its planet: Akasha – Saturn, Vayu – Mercury, Tejas – Sun and Mars, Prithvi – Jupiter, Apas – Moon and Venus. When a Tattwa window starts in a planetary hour of its own planet, that is its golden hour. The app shows them and can remind you.

    Why does the app need my location?

    Sunrise depends on where you are, so every Tattwa time, planetary hour and sun time differs from place to place. Your location is used for these calculations; you can also save places by hand.

    How much does Tatwametro cost?

    Tatwametro is a one-time purchase: $4.99 on the App Store and $6.99 on Google Play. No subscription and no ads. Prices may vary by country and store.

    Which devices and languages are supported?

    iPhone and Android, with a home screen widget on both. The app is available in German, English and Spanish.

    What is the calculation based on?

    On the book “Der Tatwameter – Die Schwingungen des Äthers” by Dr. Krumm-Heller, combined with precise sun times and planetary hours for your location.

    Find your moment in the rhythm of the elements.

    Get it now for iPhone and Android – a one-time purchase.

    Buy once. Keep forever. No subscription, no recurring fees. Less than a coffee to go. Prices may vary by country and store.

    Ready in three steps

    1. 1
      Share your location

      So sunrise and Tattwa times are right for where you are.

    2. 2
      Enter your birth details

      Date, time and place – for your birth Tattwa and birth planet.

    3. 3
      Turn on notifications

      And never miss a golden hour.

    Honest from the start

    • One-time purchase – no subscription
    • No ads, your data is never shared for advertising
    • Your location is used to calculate the times