What is the difference between Slender and Slim?

Daily writing series. How to sleep Well on sunlight saving day. Today new words: judiciously blockbuster march ahead deprived On March 10th, all clocks in American will march head one hour for this Sunlight Savi Day, which means we will lost one hours sleep. Therefore, how can we judiciously utilize the time before going to bed to keep us energetic？ You may think just lost one hour sleep is not a big of deal. But considering the common issue of sleep derived, especially student, or office worker bearing lots of pressures, losing one hour sleep will apparently cause more healthy issues. So there are some tips shown below that I think it could help you sleep well as light saving day starts. 1. Create a relaxed atmosphere during one hour before bed. Besides your normal washing routine, you could play light music, weaken the light in your room, or play peaceful radio. Helping yourself relax your body and go into the sleeping mode quicker. Don't drink wine and watch the movie please. I know that current blockbuster like 'The Wondering Earth' is really attractive, you could leave a plenty of time at weekends to enjoy movie but not the nights before working. 2. Do some light exercise in the morning. After waking up, we can do some stretching and take a walk outside. Smelling the fresh air to refresh your brain for the day. 3. Set priority for the day. You want to put your most important things in the time that you have most energy during the day. If you do plan you day, you won't regret at the end of the day and feel less productive. Welcome any corrections for this article and feel free to point out any unnatural sentence. Your correction is biggest encouragment for me to keep it up！

As clocks march ahead of time on March 10, 2019。 What does march ahead of means?