Solar terms in 1909
The exact moment of all 24 solar terms in 1909, in China Standard Time and UTC.
| Term | China Standard Time | UTC | Sun at | Meaning |
|---|---|---|---|---|
| Minor Cold | Jan 6 06:45 AM | Jan 5 10:45 PM | 285° | Cold is building. |
| Major Cold | Jan 21 12:11 AM | Jan 20 04:11 PM | 300° | The coldest stretch. |
| Start of Spring | Feb 4 06:32 PM | Feb 4 10:32 AM | 315° | Spring begins by the old calendar. |
| Rain Water | Feb 19 02:38 PM | Feb 19 06:38 AM | 330° | Snow gives way to rain. |
| Awakening of Insects | Mar 6 01:01 PM | Mar 6 05:01 AM | 345° | Thunder wakes the insects. |
| Spring Equinox | Mar 21 02:13 PM | Mar 21 06:13 AM | 0° | Day and night are equal. |
| Pure Brightness | Apr 5 06:30 PM | Apr 5 10:30 AM | 15° | Clear air; a time to tend family graves. |
| Grain Rain | Apr 21 01:58 AM | Apr 20 05:58 PM | 30° | Rain that helps grain grow. |
| Start of Summer | May 6 12:31 PM | May 6 04:31 AM | 45° | Summer begins. |
| Grain Buds | May 22 01:45 AM | May 21 05:45 PM | 60° | Grain fills but isn’t ripe. |
| Grain in Ear | Jun 6 05:14 PM | Jun 6 09:14 AM | 75° | Time to sow millet and harvest wheat. |
| Summer Solstice | Jun 22 10:05 AM | Jun 22 02:05 AM | 90° | The longest day in the north. |
| Minor Heat | Jul 8 03:44 AM | Jul 7 07:44 PM | 105° | Heat is building. |
| Major Heat | Jul 23 09:00 PM | Jul 23 01:00 PM | 120° | The hottest stretch. |
| Start of Autumn | Aug 8 01:22 PM | Aug 8 05:22 AM | 135° | Autumn begins. |
| End of Heat | Aug 24 03:43 AM | Aug 23 07:43 PM | 150° | The heat ends. |
| White Dew | Sep 8 03:46 PM | Sep 8 07:46 AM | 165° | Dew forms in the cool nights. |
| Autumn Equinox | Sep 24 12:44 AM | Sep 23 04:44 PM | 180° | Day and night are equal again. |
| Cold Dew | Oct 9 06:43 AM | Oct 8 10:43 PM | 195° | Dew turns cold. |
| Frost Descent | Oct 24 09:22 AM | Oct 24 01:22 AM | 210° | The first frost comes. |
| Start of Winter | Nov 8 09:13 AM | Nov 8 01:13 AM | 225° | Winter begins. |
| Minor Snow | Nov 23 06:20 AM | Nov 22 10:20 PM | 240° | Light snow starts. |
| Major Snow | Dec 8 01:35 AM | Dec 7 05:35 PM | 255° | Heavier snow. |
| Winter Solstice | Dec 22 07:20 PM | Dec 22 11:20 AM | 270° | The shortest day in the north. |
Each term is the moment the Sun reaches a set position, so its date is a calculation, not a custom. The names come from farming life in the Yellow River valley and fit other climates loosely.