Cloud computing is an internet-based computing where resources, soft wares and information are shared on demand basis i.e. user can access documents anytime anywhere. Execution of real time task on cloud computing environment is an emerging research area. Real-time task needs to meet their deadlines regardless of system load or makespan. This paper discusses about scheduling of real time task on cloud environment considering Basic Earliest deadline first (BEDF), FFE (first fit EDF), BFE (best fit EDF), WFE (Worst fit EDF) algorithms. Different performance parameters such as guarantee ratio (GR), utilization of VMs (UV), throughput (TP) are used to measure the effectiveness of the algorithms.