I don’t think so. Whenever you can have a 10-minutes break you can sit down and meditate. I think it helps a lot to deal with stress so do it when you feel stressful, at every time that you like. If you want an energetic start of the day you can do it first time in the morning. To unwind and relax in the evening, try it before sleeping and you’ll feel more rested.
I have found that meditation is first and foremost a mindset. As humans our mental state tends to have a connection with time and place. For example, some people will never feel calm and relaxed in the dentist's waiting room. Or some may associate sitting in front of the TV after dinner as "end of the day, no more work" time and feel relaxed. If you find a situation when it is easy to meditate (either because of the timing or the way it makes you feel) then there is sense in trying to make use of that time and/or place consistently and cultivate a strong connection with it and your meditation practice.
- What is meditation for you? What else do you experience as if meditating? Is meditation a specific activity?
- What meditation is the most beneficial when you’re new to meditation?
- Do you vary your times, or meditate more than once?
- What time of day do you most like to meditate?
- What’s your best meditation experience to date?
- How do you manage to concentrate and not be disturbed by noise and other thoughts while meditating?
- What do you observe while meditating? What is on your mind?
- Have you seen any conscious changes in your daily routines? If so what are they?
- Is it wrong to meditate while lying down?
- How “deep” does one go into meditation? I feel that I stay quite aware of my surroundings. Is this OK?