Zend certified PHP/Magento developer

Excel gannt chart one event with multiple duration

Hi im working on a large dataset which i need to plot a timeline in gantt chart fashion( horizontal bars with y-axis the event/task and x-axis time) but one event/task has multiple duration for instance how would you plot this gantt chart:

Event A: taking place between Monday to Tuesdays AND Saturday to Sunday

Event B: taking place Tuesday to Wednesday

Event C: taking place Wednesday to Thursday

I was following this tutorial https://youtu.be/xsxi4qaEnOg but since task A has 2 durations the gantt chart will have 4 tasks in the y axis as task A will be repeated: one bar with only monday to tuesday and another bar with saturday to sunday.

Any help is appreciated thanks