In the 1980s.
the classical time period
The Precambrian period was from 4600 million years ago to about 542 million years ago.
Bushrangers were active in Australia primarily during the 19th century, with their peak occurring between the 1830s and 1860s. This period coincided with the transportation of convicts and the expansion of settlements, where bushrangers often engaged in robberies and confrontations with authorities. Their legacy remains a significant part of Australian history and folklore.
a two hundred year time period between 1321 and 1521
The bubonic plages time period was the middel ages.
the classical time period
1920
1901 to 1910
from 14th to 17th centuries
Some electricity supply utility companies offer electric power at cheaper charge rates during their "off-peak" period each day, for example in "Cents per kiloWatt-hour". (The actual charge obviously depends on what your local money is.) The "peak" period is usully during normal daytime hours and the "off-peak" period is usually during the night. The start and finish times for these periods are controlled by a time clock connected to the electricity meter which has to be "dual-charge-rate" meter to record the total electricity used at the two different charging rates. As you don't say where you live, the best answer to help you is to advise you to contact your local electricity supplier to ask for the local electricity charging rates and the times of day for peak and off-peak electricity supply periods.
The Greek made Dipylon vase is from the Late Geometric Period or circa 800 B.C. This period marked the peak production time of ceramics.
The period of a 261 Hertz sound wave is 0.000383 Seconds
The imperial time period generally refers to the period when an empire was in power. There have been many imperial time periods throughout history, such as the Roman Empire, the Ottoman Empire, and the British Empire. Each empire had its own peak period of influence and power.
Medieval Times
12,500 years ago
IT encompasses all of the geological time period that have happened since the begin of time
Peak and non-peak hours should not have individual effects on water bodies. The properties of water make it slow changing and therefore it the pH would change over a larger period of time, and not just in a peak hour