How long does it take to copy warp with a brush?

Heart Sutra can also be written as the content of a calligraphy work. As for how long it takes to write a heart sutra, it depends on the font used. If you want to write in lines, you can finish it in an hour. If you want to write in regular script, it may take two to three hours, depending on the nature of the author. Some people are naturally slow and take a long time, while others use them quickly.