Incorrect time specifications in Fire danger indicators ?

Hi everybody and happy 2025!
While working with Fire danger indicators (https://cds.climate.copernicus.eu/datasets/sis-tourism-fire-danger-indicators?tab=download ) future projection data, I discovered that the time variable seems to be off.
E.g., netCDF file with daily values for year 2060 would be expected to have time variable values (days since 1949-12-01) to point to start/end of that year. In reality the variable points to June 2, 2058 (day 39630) and to May 27, 2059 (day 39989).
is anybody encountered something similar? Is it a mistake if time var specification or an actual “data shift”?

I attach API code below:

import cdsapi

dataset = “sis-tourism-fire-danger-indicators”
request = {
“time_aggregation”: “daily_indicators”,
“product_type”: “single_model”,
“variable”: [“daily_fire_weather_index”],
“gcm_model”: [“hadgem2_es”],
“experiment”: “rcp4_5”,
“version”: “v2_0”,
“period”: [“2060”]
}

client = cdsapi.Client()
client.retrieve(dataset, request).download()

kindly, igor