Final answer:
To avoid the hottest part of the day for jogging, it is better to go in the early morning as temperatures are cooler before the Sun reaches the local meridian, compared to noon when heat can peak in the early afternoon.
Step-by-step explanation:
If you want to avoid the hottest part of the day for jogging, it is advisable to go in the early morning. During the first half of the day, the Sun has not yet reached the meridian, which is designated as before midday (ante meridiem, or a.m.). Since the Sun is lower on the horizon, the temperatures are generally cooler, and the shadows cast by a vertical pole or post are longer, indicating that the Sun has not reached its highest and often hottest point in the sky. By noon, after the Sun passes the local meridian, it is already descending towards the horizon, but the heat from the solar radiation typically peaks in the early afternoon because the Earth continues to absorb and retain heat past noon.
Daylight saving time, which shifts the clock one hour forward between April and October, aims to make better use of the sunlight in the early morning and late afternoon but does not affect the actual position of the Sun in the sky or when the hottest part of the day will occur. Adjusting the timing of your daily activities, such as jogging during the cooler morning hours, can help you avoid the peak heat and also take advantage of daylight saving time.