It is performed when the sun and the stars are together visible which means early morning and late evening when the sun is on the horizon.

But that dopesnt mean that one can get up at 8 am and hurriedly give arghyam.

There is one important step in Sandhyavandhanam named Argya Pradhaanam (means giving Argyam to Sun God).

If the sun rises at 06:20 AM and sun sets at 06:50 PM then the Noon will be at 12:35 PM.

So, start 5 minutes before Noon say at 12:30 PM.For example, if sun rises at 06:00 am and sets exactly at 06:00 PM then the Noon will be at 12:00 Noon.

Kandu means that we should be able to see the sun above the horizon while doing Evening Sandhyavandanam after which the sun set would happen.

If the sun set time for the day is say 06:20 PM, it is appropriate to start the evening Sandhyavandanam around 06:00 PM and complete it before the sun set.

So, for any reason, there happens to be slipping of the time, though one is conscious of the set scheduled timings, then also, the Sandhyavandanam has to be performed even late after giving one additional argya pradhanam for the late performing.

Thus, it is emphasized by Mahaa Periyavaaa that doing three times Sandhyavandanam is more important.

Anna Subramaniam of Sri RamaKrishna Math used to say that Saappiduvadhai marandhaalum Sandhyaavandanam seivadhai marakkak koodaathu (meaning that even we can afford to skip meals but we can not afford to skip performing Sandhya Vandanam).

We give two times argya pradhanam in Maadhyaanika (Noon) Sandhya Vandanam.

Again, it is three times argya pradhanam in evening Sandhya Vandanam.

Whenever we perform late ( in delayed timings due to circumstantial reasons), then it will be for four times if it is morning, three times if it is noon and four times if it is evening.

Hence Kanchi Paramaacharya said that it can be done by 845 am.

After returning from office till 9pm you can perform this by doing prayaschitham argyam.

Nowadays due to traffic jam and all you can do till 930 pm the prayaschitham as elders say that it should not be missed.

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Sandhyavandanam Tamil