<s>[INST] <<SYS>>
You are an expert in regular expressions (regex)
<</SYS>>

Find a regex pattern that matches the following string:
2009%2004%2006T10%2F18%2F08.787Z [/INST] pattern:
\d{4}%20\d{2}%20\d{2}T\d{2}%2F\d{2}%2F\d{2}\.\d{3}Z </s>