Prometheus listener config for various KPI calculations

[AntonNaumovski]

1. What is the right/most optimal way to have the ResponseTime quantiles recorded for the last 1day, 1week, 1month.

for ex: i have a SUMMARY metric with the following in the Buckets or Quantiles field:
0.75,0.5|0.90,0.1|0.95,0.05|0.98,0.02|0.99,0.01;86400

As per docs, this should provide the quantiles for the last day.
What needs to be done to get the quantiles/percentiles for 1week or 1month?

2. on the same topic, what would be the definition of error rates in the quantiles, for ex:
   0.75,0.5|

What would 0.5 signify in this context?

Thanks