A prayer-time screen has one job, and the congregation will notice the first morning it gets it wrong. Everything else about mosque signage — the design, the announcements, the size of the screen — matters less than whether the adhan and iqamah times are correct every single day, including the days the calendar changes.
This guide is for mosque committees, Islamic centres and the facilities teams that support them across the GCC and Africa. It covers what the screen must get right, how it should behave in a place of worship, and the hardware decisions that keep it reliable for years. Customs differ between communities, so treat the placement and content guidance as questions to settle with your imam and committee rather than rules.
The quick reference
- Time accuracy first. The player must keep exact time from a network or satellite source, not from its own clock.
- Use the community's calculation method. Official national timetables, juristic method for Asr, and high-latitude rules all change the times shown.
- Plan for manual override. Moon-sighting announcements can move the start of Ramadan and Eid at short notice.
- Decide behaviour at iqamah. Most mosques want the screen to dim or simplify while prayer is in progress.
- Commercial display, not a television. Prayer-time screens run all day, every day.
What a prayer-time screen should show
- The five daily prayers — Fajr, Dhuhr, Asr, Maghrib and Isha — with both the adhan time and the iqamah time, plus sunrise.
- A countdown to the next adhan or iqamah, which is the single most-read element on the screen.
- Jumu'ah times on Fridays, including separate khutbah times where a mosque holds more than one.
- Gregorian and Hijri dates side by side.
- Ramadan information in season — imsak and iftar times, and taraweeh arrangements.
- Community announcements — classes, funeral prayers, collections, events — in the languages your congregation reads.
Getting the times right
Exact time, from an external source
Media players keep time with an internal clock that drifts. Over weeks a drift of a minute or two is ordinary, and on a prayer-time screen that is a visible error. The player should synchronise to network time automatically and be checked after any power cut. Where the mosque's internet connection is unreliable, choose a player that keeps time accurately offline and re-syncs when the connection returns.
The right calculation method
Prayer times are calculated from the sun's position, but the conventions vary, and two correctly built screens can show different times if they use different settings:
- Official timetables. Many countries publish an official timetable through their religious affairs authority, and congregations expect the mosque to match it. Where one exists, follow it rather than a generic calculation.
- Fajr and Isha angles differ between calculation conventions.
- Asr differs between the majority method and the Hanafi method, which places Asr noticeably later. Communities in South Asia and parts of Africa often follow the Hanafi time.
- Iqamah offsets are set by each mosque, not calculated — the software must let the committee set them per prayer and change them seasonally.
Confirm the method with the imam before the screen goes live, and check the first week's times against the official timetable.
Moon sighting and manual override
Where the start of Ramadan and the Eid dates follow a moon-sighting announcement, the change can come the evening before. The Hijri date and the Ramadan schedule must be adjustable from a phone or a laptop by a named committee member in minutes, without calling a contractor. A screen that cannot be corrected quickly will show the wrong day on the most closely watched night of the year.
How the screen should behave in a place of worship
- During prayer. Most committees want the screen to dim, go dark or show only a simple notice from iqamah until prayer ends, so it does not distract worshippers. Choose software that can do this automatically on the timetable.
- Placement. Many mosques prefer screens at the entrance, in corridors and in the women's section rather than on the qibla wall in front of the congregation. Settle this with the imam before the cabling goes in.
- Brightness. A screen bright enough for a sunlit entrance is uncomfortable in a dim prayer hall at Fajr and Isha. Scheduled brightness solves it.
- Content. Many communities prefer text, calligraphy and patterns to images of people. Agree a content policy before announcements start arriving from every committee member.
- Sound. Signage should stay silent. The adhan comes from the mosque's own sound system, and a screen playing audio competes with it.
Arabic and multilingual content
Arabic must render right to left with correct letter joining and with a proper Arabic typeface — a surprising number of signage templates break Arabic text or fall back to an unsuitable font. Many congregations also need English, French, Urdu, Swahili or Hausa alongside Arabic for announcements. Test the actual software with real Arabic text, including diacritics where Quranic text is displayed, before committing. We cover display language support more generally in Arabic and French interface support.
The hardware decisions
- Commercial display, not a consumer television. A prayer-time screen runs from before Fajr until after Isha, every day. A television is not rated for that duty and its warranty will not cover it — see commercial display versus consumer TV.
- Size by reading distance. The countdown and the five times must be readable from the back of the entrance hall. Larger text on a mid-size screen often works better than small text on a large one.
- Portrait or landscape. Portrait suits a timetable in a corridor; landscape suits a hall. Confirm the panel is rated for the orientation you choose.
- A dedicated media player with reliable time sync and remote management, so updates do not require a visit.
- Power protection. Where the grid is unstable, a small UPS and surge protection protect the screen and keep the clock from resetting — see powering displays on unstable grids.
- Secure mounting out of reach of children, and cabling hidden for appearance and safety.
Larger centres and multi-site organisations
An Islamic centre with a prayer hall, a school and a community hall, or an awqaf body managing many mosques, benefits from central content management: one place to update announcements, per-site timetables, and schedules for each screen. That is the same architecture as any digital signage network, and the same procurement questions apply — see signage for public-service halls.
Frequently asked questions
Why does our prayer-time screen show a different time from the official timetable?
Usually because it uses a different calculation method, a different Asr method, or a clock that has drifted. Set the software to the official timetable or the method your community follows, enable automatic time synchronisation, and check it against the official times.
How do we change the screen when the moon is sighted?
Choose software that lets a named committee member adjust the Hijri date and the Ramadan or Eid schedule remotely in minutes. Test the procedure before Ramadan rather than on the night of the announcement.
Should the screen switch off during prayer?
Many mosques dim it or show a simple notice from iqamah until prayer ends so it does not distract worshippers. Agree the behaviour with the imam and configure it to happen automatically.
Can we use a normal television?
It is not recommended. A prayer-time screen runs most of the day every day, and consumer televisions are neither rated nor warranted for that use. A commercial display costs more and lasts considerably longer.
Where should prayer-time screens go?
Commonly at entrances, in corridors and in the women's section, where they inform people arriving without facing the congregation during prayer. Confirm placement with the imam and committee before installation.
Supplying mosque and Islamic centre signage
Smart-Boards supplies commercial displays, media players and mounting for mosques, Islamic centres and awqaf bodies across the GCC and Africa on a quote basis. Browse digital signage solutions, digital signage media players and mounts and stands, or tell us the number of screens, where they will hang and the languages you need, and we will specify a reliable prayer-time setup and quote it delivered and installed.