I started posting IEM Daily Feature's back in early 2002 as a means to get people to visit the website daily and also highlight plots that show interesting weather and climate data. Today's feature is the 2,500th one in the series, so the presented plot looks at the time of day this feature message is posted each day. The plot illustrates the process of aging for human males with activities starting earlier in the morning with the passing years. If the trend continues, I'll be posting daily features at 3 AM in the year 2022! Hehe.

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