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Calculate the exact time remaining until the Grain Rain solar term in real time. Perfect for tracking agricultural events and traditional cultural milestones.
Overview
Understand what the tool solves, how it works, and the boundaries of its data.
Guyu, commonly rendered in English as Grain Rain (also called Corn Rain in some calendars), is one of the 24 traditional Chinese solar terms. It begins at a defined point in the Sun’s apparent path, rather than at midnight on a fixed calendar date. The Hong Kong Observatory’s overview places Corn Rain at 30° solar longitude and explains that the terms are spaced 15° apart. This is a calendar marker; the name does not forecast rainfall where you live.
This page follows the upcoming Guyu and shows its Gregorian date, weekday, a traditional lunar-calendar date, and a live countdown in days, hours, minutes, and seconds. The date line currently uses Chinese year, month, and day markers, and the lunar date is shown in Chinese. The countdown is the time difference between the target moment and the device clock. A moment calculated for the Chinese calendar may fall on a different local clock time—or even a different civil date—when viewed in another time zone.
Guide
Follow the workflow and verify inputs and outputs with practical examples.
Check that the heading identifies Guyu / Grain Rain and note the year shown in the date. The page initially moves to the next Guyu when this year’s moment has already passed.
Use the Gregorian date and weekday for ordinary scheduling. The lunar date is an additional traditional-calendar reference; it is not a second time-zone conversion.
Use the year selector to inspect another occurrence. If the countdown has passed, the page offers a next-year switch. Recheck the displayed year after changing it.
The countdown follows the device’s local clock and the target instant represented by the page. Before putting the event in a calendar or invitation, verify the time in the time zone used by your audience.
For example, an editor planning an article for the 2027 Guyu can use the displayed date to set a draft deadline, then confirm the exact event time against an authoritative calendar for the intended time zone.
Use cases
See how the tool fits into real work and everyday tasks.
Plan a seasonal newsletter or classroom post around the displayed Guyu date, then state the full date and applicable time zone in the publication schedule.
Use the countdown as a prompt to discuss how a solar term is defined by the Sun’s position and how that differs from a date that stays fixed every year.
Check how close the next occurrence is, then create a calendar reminder with the year and local time clearly recorded.
Q&A
Find concise answers to common questions and confusing cases.
No. The term is defined by an astronomical moment, so its Gregorian date and clock time can vary by year and time zone. Check the year shown on the page.
No. It is the English name of a traditional solar term, not a weather forecast or a prediction about local growing conditions.
Sources may display different time zones, and a time near midnight can map to adjacent civil dates. Compare the year, time zone, and definition of the solar-term instant.
Notes
Review scope, result limitations, and important precautions before use.
The date markers and lunar-calendar value are currently displayed in Chinese even on the English page. The countdown depends on the device’s current date, time, and time-zone settings. Its lunar-calendar label is contextual information, while the countdown is an elapsed-time calculation to one target moment. Do not use the seasonal name as evidence of local weather, crop readiness, or agricultural advice. For a public event or travel plan, confirm the event time with a calendar source that states the relevant time zone.
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