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Accurately calculate the real-time remaining time until the next Chushu (End of Heat) solar term, featuring automatic cross-year switching.
Overview
Understand what the tool solves, how it works, and the boundaries of its data.
Chushu, also called End of Heat in English, is one of the 24 traditional Chinese solar terms. It occurs when the Sun reaches 150° of ecliptic longitude. Since this is an astronomical point rather than a fixed Gregorian date, its calendar date and clock time can vary from year to year. The Hong Kong Observatory’s solar-term table places End of Heat at 150°.
The name describes a traditional seasonal marker. It does not forecast local temperatures or mean that summer weather ends everywhere on that date.
The page displays a Gregorian date, a lunar-calendar date and a countdown in days, hours, minutes and seconds for the selected solar term and year. The date answers “which day?” while the timer shows the remaining interval according to the device clock. The lunar date is an additional calendar reference; it does not change the astronomical definition.
For context, the US search results for “End of Heat” mix the Chinese-calendar meaning with ordinary seasonal language. Including “Chushu” and “Chinese solar term” makes clear that this page tracks a calendar event, not a weather forecast.
Guide
Follow the workflow and verify inputs and outputs with practical examples.
Confirm that the selected term is Chushu / End of Heat in the term selector.
Set the year you want to inspect. The displayed Gregorian date and lunar date update for that year.
Read the countdown for the remaining interval. If you need only the calendar day, use the date display.
When the current year’s Chushu has already passed on initial page load, the page advances to the next year. If you keep the page open through the event, the timer reaches its passed state; select the next year to continue.
Use cases
See how the tool fits into real work and everyday tasks.
Compare Chushu across selected years and discuss why a solar term does not remain on one Gregorian date. The 150° marker connects the displayed event to the Sun’s position.
Use the selected year’s date to note a festival, lesson or seasonal activity. For a timed event, check the time zone and authoritative local almanac used by your organizer.
Q&A
Find concise answers to common questions and confusing cases.
No. It is defined by the Sun’s position, so the Gregorian date and time can shift between years.
No. It names a traditional calendar marker. Local weather depends on local conditions and is not calculated by this countdown.
It provides a second calendar reference alongside the Gregorian date. The countdown still targets the selected solar term.
Notes
Review scope, result limitations, and important precautions before use.
The countdown compares the event time with the time on your device. An incorrect clock or time-zone setting can make the remaining interval misleading. For publication, observation or scheduling that depends on an exact civil time, verify the year and time-zone convention against an authoritative almanac. A one-second screen update describes the display refresh, not the precision of an independent timekeeping service.
Chushu is not a temperature forecast. Use a local weather service for local conditions.
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