Accurate prayer times.
Even on the mountain.

The only prayer-times API that respects elevation. Five prayers, every major calculation school, and the Hanafi/Shafi Asr methods — computed from the same JPL DE421 ephemerides used by major observatories.

Read the API docs See pricing

Every major school

MWL (18°/17°), ISNA (15°/15°), Egyptian (19.5°/17.5°), Umm al-Qura (Maghrib + 90 min), Karachi (18°/18°).

Both Asr methods

Shafi (N=1, majority) and Hanafi (N=2). Selectable per request — no hard-coded default.

Mountain-aware

Tehran, Sarajevo, Bandung, Quito — every mountain Muslim community gets correct times.

One call per location per day

curl -H "Authorization: Bearer $THIRDTRAIL_KEY" \
  "https://thirdtrail.life/v1/ephemerides/prayer-times/?lat=35.6892&lon=51.3890&elevation=1190&date=2026-06-21&school=mwl&asr_method=hanafi&tz=Asia/Tehran"

Tehran (1 190 m), MWL school, Hanafi Asr method, summer solstice.

Response:

{
  "request":  { "lat": 35.6892, "lon": 51.3890, "elevation_m": 1190,
                "date": "2026-06-21",
                "school": "mwl", "asr_method": "hanafi" },
  "resolved": { "school": "mwl", "asr_method": "hanafi",
                "elevation_m": 1190, "elevation_source": "user",
                "timezone": "Asia/Tehran", "plan": "pro" },
  "date":     "2026-06-21",
  "prayer_times": {
    "fajr":     "2026-06-21T03:54:30+04:30",
    "sunrise":  "2026-06-21T05:33:18+04:30",
    "dhuhr":    "2026-06-21T13:01:08+04:30",
    "asr":      "2026-06-21T17:48:12+04:30",
    "maghrib":  "2026-06-21T20:30:24+04:30",
    "isha":     "2026-06-21T22:09:01+04:30"
  }
}

Why we don't pick a default school

Picking one school as the default would be wrong for many users and quietly insulting to others. Schools disagree on Fajr / Isha angles and Asr methodology for principled reasons. Our endpoint requires school as an explicit parameter, with the list of supported schools and their twilight-angle values documented openly. The caller chooses; we compute.

asr_method defaults to shafi (N=1) because that is the position of the global majority of Sunni jurisprudence (Shafi, Maliki, Hanbali, Jafari). Hanafi callers pass asr_method=hanafi explicitly.

Methodology

Sun position: NREL SPA-equivalent computation backed by JPL DE421. Sub-arcsecond position accuracy; prayer-time instants are accurate to about a minute. 1900–2050.
Fajr / Isha: time when the sun centre crosses −angle° below the elevation-corrected horizon (or Maghrib + 90 min for Umm al-Qura).
Sunrise / Maghrib: standard rise/set, with horizon dip applied for the observer's elevation (the same horizon used by our main Ephemerides endpoint).
Dhuhr: solar transit (true noon).
Asr: shadow-length formula. asr_alt = arccot(N + cot(noon_alt)) where N=1 (Shafi) or N=2 (Hanafi). Sun crosses that altitude going down.

Methodology under continuous review with qualified scholars before commercial launch of paid tiers; please reach out via support (at) thirdtrail.life with corrections. These are computed convenience values provided for information only — confirm against your local religious authority before relying on them. See safe use and methodology.

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Accurate prayer times.Even on the mountain.