Difference between EST and EDT?
EDT is the time zone used in summer and spring, while EST is the time zone used in winter and autumn.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request.
### Instruction: Difference between EST and EDT?
### Input: 
### Response: EDT is the time zone used in summer and spring, while EST is the time zone used in winter and autumn.