Standardize the following date to the ISO 8601 format.
July 26th, 2021
The standardized date in ISO 8601 format is: 2021-07-26
Complete the following task based on the instruction and optional input provided.### Instruction:
Standardize the following date to the ISO 8601 format.

### Input:
July 26th, 2021

### Output:
The standardized date in ISO 8601 format is: 2021-07-26