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Screenshots
Description
The Sidereal Time App gives the user a simple and quick way to determine:
- Local Apparent Sidereal Time (LAST) based on longitude
- Rough estimate of LAST based on Time Zone
- Greenwich Apparent Sidereal Time (GAST)
- Select one of 30 Stratum-1 NTP servers or add your own to synchronize the clock against the primary network time standard
The App uses core location (GPS, cellular triangulation and/or Skyhook Wirelesss Wi-Fi system) to determine the users present position and hence his LAST. The user may also manually select the longitude coordinate to determine LAST or make a rough estimate by selecting a Time Zone.
A running clock with the Coordinated Universal Time is presented in parallel with the Sidereal Time clock.
Local Apparent Sidereal Time at any location differs from the Greenwich Sidereal Time value of the same moment, by an amount that depends on the longitude of the location. When one moves eastward 15° in longitude, sidereal time is larger by one hour and hence wraps around at 24 hours. Unlike computing local solar time, differences in longitude and time are counted here to the accuracy of measurement, not just in whole hours.
Estimates
Availability
Devices
iPhoneFirstGen
iPodTouchFirstGen
iPodTouchSecondGen
iPhone3G
iPhone3GS
iPadWifi
iPad3G
iPhone4
iPodTouchThirdGen
iPodTouchFourthGen
iPad2Wifi
iPad23G
iPhone4S
iPadThirdGen
iPadThirdGen4G
iPhone5
iPodTouchFifthGen
iPadFourthGen
iPadFourthGen4G
iPadMini
iPadMini4G
iPhone5c
iPhone5s
iPadAir
iPadAirCellular
iPadMiniRetina
iPadMiniRetinaCellular
iPhone6
iPhone6Plus
iPadAir2
iPadAir2Cellular
iPadMini3
iPadMini3Cellular
iPodTouchSixthGen
iPhone6s
iPhone6sPlus
iPadMini4
iPadMini4Cellular
iPadPro
iPadProCellular
iPadPro97
iPadPro97Cellular
iPhoneSE
iPhone7
iPhone7Plus
iPad611
iPad612
iPad71
iPad72
iPad73
iPad74
iPhone8
iPhone8Plus
iPhoneX
iPad75
iPad76
iPhoneXS
iPhoneXSMax
iPhoneXR
iPad812
iPad834
iPad856
iPad878
Watch4
iPadMini5
iPadMini5Cellular
iPadAir3
iPadAir3Cellular
iPodTouchSeventhGen
iPhone11
iPhone11Pro
Watch5
iPadSeventhGen
iPadSeventhGenCellular
iPhone11ProMax
iPhoneSESecondGen
iPadProSecondGen
iPadProSecondGenCellular
iPadProFourthGen
iPadProFourthGenCellular
Pricing by country
| Country | Price |
|---|---|
| Canada | 0.99 CAD |
| China | 8 CNY |
| France | 0.99 EUR |
| Germany | 0.99 EUR |
| Italy | 0.99 EUR |
| Netherlands | 0.99 EUR |
| Portugal | 0.99 EUR |
| Spain | 0.99 EUR |
| Poland | 1.09 EUR |
| UK | 0.99 GBP |
| India | 99 INR |
| Japan | 100 JPY |
| Korea, Republic Of | 1100 KRW |
| Poland | 4.99 PLN |
| Russia | 99 RUB |
| Turkey | 29.99 TRY |
| USA | 0.99 USD |
| Korea, Republic Of | 1.09 USD |
| Ukraine | 0.99 USD |
