1-2 1/2 hours
From Encyclopedia & World Directory
1-2 1/2 hours - an indication that something has lasted, occurred during, or totalled between 1 and 2.5 hours.
Latest articles - 1-2 1/2 hours[edit source]
Source: Data courtesy of the U.S. National Library of Medicine. Since the data might have changed, please query MeSH on 1-2 1/2 hours for any updates.