The Syriac Orthodox book of prayer for routine use is called the shimo; meaning 'simple '. The shimo has offices for the canonical hours for each day of the week from Monday to Friday. Each canonical office begins and ends with a qawmo (literally 'standing'), a set of prayers that includes the Trisagion and the Lord's Prayer. At the end of the office, the Nicene creed is recited.
On Sundays, and on festivals like Ascension of our Lord, Annunciation.. and special seasons like the Great Lent, White Week (week after Easter) etc; instead of the prayer for routine use as found in the shimo, the prayers from the Fenqitho are used. So on Sunday's the liturgy of hours called Qyamtho, taken from the Fenqitho is used. There are several regional variations of the Fenqitho and a lot of these are only available as manuscripts. When it comes to printed editions, we have two in current use, the seven volume, Mosul edition of the Fenqitho (Penqita), printed at the Dominican Press in Mosul (1886-1896) and the three volume Pampakuda edition of the Fenqitho printed at Pampakuda in Kerala. Although Mosul Fenqitho and Pampakuda Fenqitho represent the same liturgical book, there is remarkably little overlap as far as the choice of madrosho is concerned. For example of the several hundred stanzas in the metre of Mor Ephrem in both the editions of the Fenqitho, they only have 25 stanzas in common.
Syriac Orthodox Church has set seven times of prayer daily. They are:
The ecclesiastical day begins in the evening at sunset. For example, Monday starts at sunset on Sunday evening. Hence, Monday's evening (ramsho) and compline (sootoro) prayers, are actually performed on Sunday in our modern reckoning.
The Syriac text of the shimo can be seen at: Link