Datasets:

Thilokya03
/

Sri-Lanka-Holiday-Dataset

Full_Date stringdate 2005-01-01 00:00:00 2026-12-31 00:00:00	Year int64 2.01k 2.03k	Month stringclasses 12 values	Date int64 1 31	Day stringclasses 7 values	Holiday_Name stringclasses 65 values	Is_Holiday bool 2 classes	Is_Public_Holiday bool 2 classes	Is_Bank_Holiday bool 2 classes	Is_Mercantile_Holiday bool 2 classes	Is_Poya_Day bool 2 classes	Is_Weekend bool 2 classes
2005-01-01	2,005	January	1	Saturday	null	true	false	true	false	false	true
2005-01-02	2,005	January	2	Sunday	null	true	false	true	false	false	true
2005-01-03	2,005	January	3	Monday	null	false	false	false	false	false	false
2005-01-04	2,005	January	4	Tuesday	null	false	false	false	false	false	false
2005-01-05	2,005	January	5	Wednesday	null	false	false	false	false	false	false
2005-01-06	2,005	January	6	Thursday	null	false	false	false	false	false	false
2005-01-07	2,005	January	7	Friday	null	false	false	false	false	false	false
2005-01-08	2,005	January	8	Saturday	null	true	false	true	false	false	true
2005-01-09	2,005	January	9	Sunday	null	true	false	true	false	false	true
2005-01-10	2,005	January	10	Monday	null	false	false	false	false	false	false
2005-01-11	2,005	January	11	Tuesday	null	false	false	false	false	false	false
2005-01-12	2,005	January	12	Wednesday	null	false	false	false	false	false	false
2005-01-13	2,005	January	13	Thursday	null	false	false	false	false	false	false
2005-01-14	2,005	January	14	Friday	Tamil Thai Pongal Day	true	true	true	true	false	false
2005-01-15	2,005	January	15	Saturday	null	true	false	true	false	false	true
2005-01-16	2,005	January	16	Sunday	null	true	false	true	false	false	true
2005-01-17	2,005	January	17	Monday	null	false	false	false	false	false	false
2005-01-18	2,005	January	18	Tuesday	null	false	false	false	false	false	false
2005-01-19	2,005	January	19	Wednesday	null	false	false	false	false	false	false
2005-01-20	2,005	January	20	Thursday	null	false	false	false	false	false	false
2005-01-21	2,005	January	21	Friday	Id-Ul-Alha (Hadji Festival Day)	true	true	true	false	false	false
2005-01-22	2,005	January	22	Saturday	null	true	false	true	false	false	true
2005-01-23	2,005	January	23	Sunday	null	true	false	true	false	false	true
2005-01-24	2,005	January	24	Monday	Duruthu Full Moon Poya Day	true	true	true	false	true	false
2005-01-25	2,005	January	25	Tuesday	null	false	false	false	false	false	false
2005-01-26	2,005	January	26	Wednesday	null	false	false	false	false	false	false
2005-01-27	2,005	January	27	Thursday	null	false	false	false	false	false	false
2005-01-28	2,005	January	28	Friday	null	false	false	false	false	false	false
2005-01-29	2,005	January	29	Saturday	null	true	false	true	false	false	true
2005-01-30	2,005	January	30	Sunday	null	true	false	true	false	false	true
2005-01-31	2,005	January	31	Monday	null	false	false	false	false	false	false
2005-02-01	2,005	February	1	Tuesday	null	false	false	false	false	false	false
2005-02-02	2,005	February	2	Wednesday	null	false	false	false	false	false	false
2005-02-03	2,005	February	3	Thursday	null	false	false	false	false	false	false
2005-02-04	2,005	February	4	Friday	Independence Day	true	true	true	true	false	false
2005-02-05	2,005	February	5	Saturday	null	true	false	true	false	false	true
2005-02-06	2,005	February	6	Sunday	null	true	false	true	false	false	true
2005-02-07	2,005	February	7	Monday	null	false	false	false	false	false	false
2005-02-08	2,005	February	8	Tuesday	null	false	false	false	false	false	false
2005-02-09	2,005	February	9	Wednesday	null	false	false	false	false	false	false
2005-02-10	2,005	February	10	Thursday	null	false	false	false	false	false	false
2005-02-11	2,005	February	11	Friday	null	false	false	false	false	false	false
2005-02-12	2,005	February	12	Saturday	null	true	false	true	false	false	true
2005-02-13	2,005	February	13	Sunday	null	true	false	true	false	false	true
2005-02-14	2,005	February	14	Monday	null	false	false	false	false	false	false
2005-02-15	2,005	February	15	Tuesday	null	false	false	false	false	false	false
2005-02-16	2,005	February	16	Wednesday	null	false	false	false	false	false	false
2005-02-17	2,005	February	17	Thursday	null	false	false	false	false	false	false
2005-02-18	2,005	February	18	Friday	null	false	false	false	false	false	false
2005-02-19	2,005	February	19	Saturday	null	true	false	true	false	false	true
2005-02-20	2,005	February	20	Sunday	null	true	false	true	false	false	true
2005-02-21	2,005	February	21	Monday	null	false	false	false	false	false	false
2005-02-22	2,005	February	22	Tuesday	null	false	false	false	false	false	false
2005-02-23	2,005	February	23	Wednesday	Navam Full Moon Poya Day	true	true	true	false	true	false
2005-02-24	2,005	February	24	Thursday	null	false	false	false	false	false	false
2005-02-25	2,005	February	25	Friday	null	false	false	false	false	false	false
2005-02-26	2,005	February	26	Saturday	null	true	false	true	false	false	true
2005-02-27	2,005	February	27	Sunday	null	true	false	true	false	false	true
2005-02-28	2,005	February	28	Monday	null	false	false	false	false	false	false
2005-03-01	2,005	March	1	Tuesday	null	false	false	false	false	false	false
2005-03-02	2,005	March	2	Wednesday	null	false	false	false	false	false	false
2005-03-03	2,005	March	3	Thursday	null	false	false	false	false	false	false
2005-03-04	2,005	March	4	Friday	null	false	false	false	false	false	false
2005-03-05	2,005	March	5	Saturday	null	true	false	true	false	false	true
2005-03-06	2,005	March	6	Sunday	null	true	false	true	false	false	true
2005-03-07	2,005	March	7	Monday	null	false	false	false	false	false	false
2005-03-08	2,005	March	8	Tuesday	Maha Sivarathri Day	true	true	true	false	false	false
2005-03-09	2,005	March	9	Wednesday	null	false	false	false	false	false	false
2005-03-10	2,005	March	10	Thursday	null	false	false	false	false	false	false
2005-03-11	2,005	March	11	Friday	null	false	false	false	false	false	false
2005-03-12	2,005	March	12	Saturday	null	true	false	true	false	false	true
2005-03-13	2,005	March	13	Sunday	null	true	false	true	false	false	true
2005-03-14	2,005	March	14	Monday	null	false	false	false	false	false	false
2005-03-15	2,005	March	15	Tuesday	null	false	false	false	false	false	false
2005-03-16	2,005	March	16	Wednesday	null	false	false	false	false	false	false
2005-03-17	2,005	March	17	Thursday	null	false	false	false	false	false	false
2005-03-18	2,005	March	18	Friday	null	false	false	false	false	false	false
2005-03-19	2,005	March	19	Saturday	null	true	false	true	false	false	true
2005-03-20	2,005	March	20	Sunday	null	true	false	true	false	false	true
2005-03-21	2,005	March	21	Monday	null	false	false	false	false	false	false
2005-03-22	2,005	March	22	Tuesday	null	false	false	false	false	false	false
2005-03-23	2,005	March	23	Wednesday	null	false	false	false	false	false	false
2005-03-24	2,005	March	24	Thursday	null	false	false	false	false	false	false
2005-03-25	2,005	March	25	Friday	Good Friday / Medin Full Moon Poya Day	true	true	true	false	true	false
2005-03-26	2,005	March	26	Saturday	null	true	false	true	false	false	true
2005-03-27	2,005	March	27	Sunday	null	true	false	true	false	false	true
2005-03-28	2,005	March	28	Monday	null	false	false	false	false	false	false
2005-03-29	2,005	March	29	Tuesday	null	false	false	false	false	false	false
2005-03-30	2,005	March	30	Wednesday	null	false	false	false	false	false	false
2005-03-31	2,005	March	31	Thursday	null	false	false	false	false	false	false
2005-04-01	2,005	April	1	Friday	null	false	false	false	false	false	false
2005-04-02	2,005	April	2	Saturday	null	true	false	true	false	false	true
2005-04-03	2,005	April	3	Sunday	null	true	false	true	false	false	true
2005-04-04	2,005	April	4	Monday	null	false	false	false	false	false	false
2005-04-05	2,005	April	5	Tuesday	null	false	false	false	false	false	false
2005-04-06	2,005	April	6	Wednesday	null	false	false	false	false	false	false
2005-04-07	2,005	April	7	Thursday	null	false	false	false	false	false	false
2005-04-08	2,005	April	8	Friday	null	false	false	false	false	false	false
2005-04-09	2,005	April	9	Saturday	null	true	false	true	false	false	true
2005-04-10	2,005	April	10	Sunday	null	true	false	true	false	false	true

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Check out the documentation for more information.

Sri Lanka Holiday Dataset

Overview

This dataset provides Sri Lankan holiday information from January 1, 2005 onward.

It contains a complete daily calendar dataset and a holiday-only dataset. The data includes public holidays, bank holidays, mercantile holidays, Full Moon Poya Days, weekends, and holiday names.

Published Files

1. `Sri_Lanka_all_dates.csv`

This is the complete calendar dataset. It contains one row for every calendar date, including ordinary working days, weekends, and official holidays.

Rows: 8,035
Start date: 2005-01-01
End date: 2026-12-31
Dates marked as holidays: 2,710
Weekend dates: 2,296

Ordinary non-holiday dates have an empty Holiday_Name. Saturdays and Sundays are marked as bank holidays.

Columns

Column	Description
`Full_Date`	The complete date in ISO `YYYY-MM-DD` format.
`Year`	The four-digit calendar year.
`Month`	The English name of the calendar month.
`Date`	The day number within the month.
`Day`	The English name of the weekday.
`Holiday_Name`	The holiday name. Multiple holidays on the same date are separated using `/`. This is empty for ordinary dates in the complete calendar dataset.
`Is_Holiday`	Indicates whether the date is treated as a holiday.
`Is_Public_Holiday`	Indicates whether the date is a public holiday.
`Is_Bank_Holiday`	Indicates whether the date is a bank holiday. Saturdays and Sundays are marked as bank holidays in the complete calendar dataset.
`Is_Mercantile_Holiday`	Indicates whether the date is a mercantile holiday.
`Is_Poya_Day`	Indicates whether the holiday is a Full Moon Poya Day.
`Is_Weekend`	Indicates whether the date is Saturday or Sunday.

2. `Sri_Lankan_Holiday_Dataset.csv`

This is the holiday-only dataset. It is generated from Combined_holidays.csv and renamed during publication.

Rows: 563
Start date: 2005-01-14
End date: 2026-12-25

When multiple holidays occur on the same date, the holiday names are combined using /.

Columns

Column	Description
`Full_Date`	The complete date in ISO `YYYY-MM-DD` format.
`Year`	The four-digit calendar year.
`Month`	The English name of the calendar month.
`Date`	The day number within the month.
`Day`	The English name of the weekday.
`Holiday_Name`	The holiday name. Multiple holidays on the same date are separated using `/`. This is empty for ordinary dates in the complete calendar dataset.
`Is_Public_Holiday`	Indicates whether the date is a public holiday.
`Is_Bank_Holiday`	Indicates whether the date is a bank holiday. Saturdays and Sundays are marked as bank holidays in the complete calendar dataset.
`Is_Mercantile_Holiday`	Indicates whether the date is a mercantile holiday.
`Is_Poya_Day`	Indicates whether the holiday is a Full Moon Poya Day.

Data Sources

The dataset is independently compiled and processed using publicly available holiday information from the Central Bank of Sri Lanka, the Department of Government Printing, and relevant Government of Sri Lanka publications.

Data-Combination Method

Before 2019, historical government calendar data is used.
From 2019 onward, CBS holiday data is used as the main reference for dates and holiday names.
Supporting government-document data may contribute holiday-category Boolean values.
Equivalent holiday records are consolidated.
Different holidays on the same date are joined using /.
Every Saturday and Sunday is marked as a bank holiday in Sri_Lanka_all_dates.csv.

Quality Checks

The automated publication workflow checks that:

Both CSV files exist and are not empty.
Dates are valid and sorted chronologically.
The complete dataset starts from 2005-01-01.
No calendar dates are missing from the complete dataset.
There is no more than one row for the same date.
Required columns are present.
Every weekend is marked as a bank holiday.

Suggested Uses

Time-series forecasting
Electricity-demand forecasting
Financial and banking analysis
Workforce and attendance planning
Public-service planning
Retail and transport-demand analysis
Calendar applications
Machine-learning feature engineering

Licence

The original compilation, organization, normalization, derived fields, and documentation are licensed under Creative Commons Attribution 4.0 International, except for third-party source material.

Disclaimer

This is an independently maintained dataset and is not an official dataset of the Central Bank of Sri Lanka or the Government of Sri Lanka.

Users should verify important dates against current official announcements before using the data for legal, banking, financial, employment, regulatory, or compliance decisions.