Vietnamese Lunar Calendar for date and calendar conversion, and cultural insights.
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Convert a lunar date (Vietnamese calendar) to solar date (Gregorian calendar)
Lunar date in YYYY-MM-DD format (e.g. 2026-01-01 for Tet)
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Convert a lunar date (Vietnamese calendar) to solar date (Gregorian calendar)
| Argument | Type | Description |
|---|---|---|
| date* | string | Lunar date in YYYY-MM-DD format (e.g. 2026-01-01 for Tet) |
{
"type": "object",
"required": [
"date"
],
"properties": {
"date": {
"type": "string",
"description": "Lunar date in YYYY-MM-DD format (e.g. 2026-01-01 for Tet)"
}
},
"additionalProperties": false
}Convert a solar date (Gregorian calendar) to lunar date (Vietnamese calendar)
| Argument | Type | Description |
|---|---|---|
| date* | string | Solar (Gregorian) date in YYYY-MM-DD format (e.g. 2026-04-18) |
{
"type": "object",
"required": [
"date"
],
"properties": {
"date": {
"type": "string",
"description": "Solar (Gregorian) date in YYYY-MM-DD format (e.g. 2026-04-18)"
}
},
"additionalProperties": false
}Get Can Chi for a given solar date
| Argument | Type | Description |
|---|---|---|
| date* | string | Solar (Gregorian) date in YYYY-MM-DD format (e.g. 2026-04-18) |
{
"type": "object",
"required": [
"date"
],
"properties": {
"date": {
"type": "string",
"description": "Solar (Gregorian) date in YYYY-MM-DD format (e.g. 2026-04-18)"
}
},
"additionalProperties": false
}Get lunar days for a given solar month
| Argument | Type | Description |
|---|---|---|
| solar_year* | integer | Solar Year in YYYY format (e.g. 2026) |
| solar_month* | integer | Solar Month, valid values are 1-12 |
{
"type": "object",
"required": [
"solar_year",
"solar_month"
],
"properties": {
"solar_year": {
"type": "integer",
"description": "Solar Year in YYYY format (e.g. 2026)"
},
"solar_month": {
"type": "integer",
"description": "Solar Month, valid values are 1-12"
}
},
"additionalProperties": false
}Get lunar vegetarian days for a given solar date and calendar type
| Argument | Type | Description |
|---|---|---|
| solar_day | integer | Day, omit if you want to get veggie days for the whole month |
| solar_year* | integer | Solar Year in YYYY format (e.g. 2026) |
| solar_month* | integer | Solar Month, valid values are 1-12 |
| lunar_vegetarian_calendar_type | string | Lunar vegetarian calendar type, one of: two_days, four_days, six_days, eight_days, ten_days, default is ten_days |
{
"type": "object",
"required": [
"solar_year",
"solar_month"
],
"properties": {
"solar_day": {
"type": "integer",
"description": "Day, omit if you want to get veggie days for the whole month"
},
"solar_year": {
"type": "integer",
"description": "Solar Year in YYYY format (e.g. 2026)"
},
"solar_month": {
"type": "integer",
"description": "Solar Month, valid values are 1-12"
},
"lunar_vegetarian_calendar_type": {
"type": "string",
"description": "Lunar vegetarian calendar type, one of: two_days, four_days, six_days, eight_days, ten_days, default is ten_days"
}
},
"additionalProperties": false
}