Daylight saving changes for any IANA time zone and year
Daylight saving changes for any IANA time zone and year - exact UTC moment, offset before and after, direction, local time and the next transition
Answeringour last check, 2026-10-20
1 of 1checks answered this week
875 msmedian answer time
$0.01listed price per call
$0.01price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://saylorinnovations.com/api/time/dst-transitions
| Category | Everything else |
|---|---|
| Provider host | saylorinnovations.com |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-20 | valid payment request | 402 | $0.01 | 875 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"year": "2026",
"zone": "America/New_York"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"year": {
"description": "optional year, default current",
"type": "string"
},
"zone": {
"description": "IANA time zone, e.g. Europe/Berlin",
"type": "string"
}
},
"required": [
"zone"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"next_transition": {
"description": "Next transition",
"properties": {
"after": {
"description": "UTC offset after the change",
"type": [
"string",
"null"
]
},
"before": {
"description": "UTC offset before the change",
"type": [
"string",
"null"
]
},
"change_minutes": {
"description": "Change, in minutes",
"type": [
"number",
"null"
]
},
"direction": {
"description": "clocks forward or clocks back",
"type": [
"string",
"null"
]
},
"local_after": {
"description": "Local after",
"type": [
"string",
"null"
]
},
"utc": {
"description": "Time in UTC",
"type": [
"string",
"null"
]
}
},
"type": [
"object",
"null"
]
},
"observes_dst": {
"description": "Observes dst",
"type": "boolean"
},
"offset_jan": {
"description": "Offset jan",
"type": "string"
},
"offset_jul": {
"description": "Offset jul",
"type": "string"
},
"source": {
"description": "Data source the values come from",
"type": "string"
},
"standard_offset": {
"description": "Standard offset",
"type": [
"string",
"null"
]
},
"transitions": {
"description": "Each change with UTC moment, offset before and after, direction and local time after",
"items": {
"properties": {
"after": {
"description": "UTC offset after the change",
"type": [
"string",
"null"
]
},
"before": {
"description": "UTC offset before the change",
"type": [
"string",
"null"
]
},
"change_minutes": {
"description": "Change, in minutes"
},
"direction": {
"description": "clocks forward or clocks back",
"type": [
"string",
"null"
]
},
"local_after": {
"description": "Local after"
},
"utc": {
"description": "Time in UTC"
}
},
"type": "object"
},
"type": "array"
},
"year": {
"description": "Calendar year",
"type": "number"
},
"zone": {
"description": "IANA time zone",
"type": "string"
}
},
"required": [
"zone",
"transitions"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}