1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
|
# holidays
# --------
# A fast, efficient Python library for generating country, province and state
# specific sets of holidays on the fly. It aims to make determining whether a
# specific date is a holiday as fast and flexible as possible.
#
# Authors: Vacanza Team and individual contributors (see CONTRIBUTORS file)
# dr-prodigy <dr.prodigy.github@gmail.com> (c) 2017-2023
# ryanss <ryanssdev@icloud.com> (c) 2014-2017
# Website: https://github.com/vacanza/holidays
# License: MIT (see LICENSE file)
from __future__ import annotations
from gettext import gettext as tr
from typing import TYPE_CHECKING
from holidays.calendars import _CustomIslamicHolidays
from holidays.calendars.gregorian import (
JAN,
FEB,
MAR,
APR,
MAY,
JUN,
JUL,
AUG,
SEP,
OCT,
NOV,
DEC,
_timedelta,
)
from holidays.constants import BANK, PUBLIC
from holidays.groups import (
ChristianHolidays,
InternationalHolidays,
IslamicHolidays,
StaticHolidays,
)
from holidays.observed_holiday_base import (
ObservedHolidayBase,
SAT_TO_NEXT_TUE,
SAT_SUN_TO_NEXT_MON,
SAT_SUN_TO_NEXT_MON_TUE,
)
if TYPE_CHECKING:
from datetime import date
class Tanzania(
ObservedHolidayBase, ChristianHolidays, InternationalHolidays, IslamicHolidays, StaticHolidays
):
"""Tanzania holidays.
References:
* [Act No. 57 of 1964](https://web.archive.org/web/20250426030228/http://www.parliament.go.tz/polis/uploads/bills/acts/1565172859-The%20Public%20Holidays%20Ordinance%20(amendment)%20Act,%201964.pdf)
* [Act No. 28 of 1966](https://web.archive.org/web/20241130122429/http://www.parliament.go.tz/polis/uploads/bills/acts/1565692654-The%20Public%20Holidays%20Ordinance%20(Amendment)%20Act,%201966.pdf)
* [Regular Notice No. 115 of 1973](https://web.archive.org/web/20250726035131/https://archive.gazettes.africa/archive/tz/1973/tz-government-gazette-dated-1973-02-02-no-5.pdf)
* [Act No. 1 of 1993](https://web.archive.org/web/20250425095011/https://www.parliament.go.tz/polis/uploads/bills/acts/1566639469-The%20Written%20Laws%20(Miscellaneous%20Amendments)%20Act,%201993.pdf)
* [Act No. 10 of 1994](https://web.archive.org/web/20240515125908/https://www.parliament.go.tz/polis/uploads/bills/acts/1566638051-The%20Written%20Laws%20(Miscellaneous%20Amendments)%20(No.%202)%20Act,%201994.pdf)
* [Supplements No. 39 of 2002](https://web.archive.org/web/20250726035133/https://media.tanzlii.org/media/legislation/375064/source_file/276a8691d29bd8a3/tz-act-gn-2002-451-publication-document.pdf)
* [Act No. 25 of 2002](https://web.archive.org/web/20250427172313/http://parliament.go.tz/polis/uploads/bills/acts/1454076376-ActNo-25-2002.pdf)
* [Government Notice No. 486 of 2022](https://web.archive.org/web/20250815171402/https://media.tanzlii.org/media/legislation/325046/source_file/aaaaa31bca89a995/tz-act-gn-2022-486-publication-document.pdf)
* [The Public Holidays Act (as of 2025)](https://web.archive.org/web/20250726035253/https://www.nps.go.tz/uploads/documents/sw-1751397436-THE%20PUBLIC%20HOLIDAYS%20ACT.pdf)
* <https://en.wikipedia.org/wiki/Public_holidays_in_Tanzania>
* <https://web.archive.org/web/20250427125715/https://mytanzaniatimes.blogspot.com/2014/08/holiday-nane-nane-farmers-day-in.html>
Checked With:
* [2025](https://web.archive.org/web/20250214094413/https://www.bot.go.tz/webdocs/Other/PUBLIC%20HOLIDAYS%202025.pdf)
* [2024](https://web.archive.org/web/20250403094322/https://www.bot.go.tz/webdocs/Other/2023%20public%20holidays.pdf)
* [2023](https://web.archive.org/web/20230811104654/https://www.bot.go.tz/webdocs/Other/2023%20public%20holidays.pdf)
* [2022](https://web.archive.org/web/20230123001009/https://www.bot.go.tz/webdocs/Other/PUBLIC%20HOLIDAYS%202022.pdf)
* [2021](https://web.archive.org/web/20210812134750/https://www.bot.go.tz/webdocs/Other/PUBLIC%20HOLIDAYS%202021.pdf)
* [2020 (2)](https://web.archive.org/web/20201219014125/https://www.bot.go.tz/webdocs/Other/PUBLIC%20HOLIDAYS%202020.pdf)
* [2020 (1)](https://web.archive.org/web/20250717184907/https://archive.gazettes.africa/archive/tz/2019/tz-government-gazette-dated-2019-11-08-no-46.pdf)
* [2018](https://web.archive.org/web/20250726041516/https://www.michuzi.co.tz/2017/11/sikukuu-za-kitaifa-zenye-mapumziko-kwa.html)
* [2014](https://web.archive.org/web/20250726041327/https://archive.gazettes.africa/archive/tz/2013/tz-government-gazette-dated-2013-07-12-no-28.pdf)
* [2013](https://web.archive.org/web/20250717184650/https://archive.gazettes.africa/archive/tz/2012/tz-government-gazette-dated-2012-11-30-no-48.pdf)
* [2011](https://web.archive.org/web/20250726041328/https://archive.gazettes.africa/archive/tz/2010/tz-government-gazette-dated-2010-10-08-no-41.pdf)
* [2010](https://web.archive.org/web/20250726041331/https://archive.gazettes.africa/archive/tz/2009/tz-government-gazette-dated-2009-09-25-no-39.pdf)
* [2009](https://web.archive.org/web/20250726042634/https://archive.gazettes.africa/archive/tz/2008/tz-government-gazette-dated-2008-09-19-no-38.pdf)
* [2007](https://web.archive.org/web/20250726035107/https://archive.gazettes.africa/archive/tz/2006/tz-government-gazette-dated-2006-09-29-no-39.pdf)
* [2006](https://web.archive.org/web/20250726042507/https://archive.gazettes.africa/archive/tz/2005/tz-government-gazette-dated-2005-11-11-no-45.pdf)
* [2004](https://web.archive.org/web/20250726042505/https://archive.gazettes.africa/archive/tz/2003/tz-government-gazette-dated-2003-10-24-no-43.pdf)
* [2003](https://web.archive.org/web/20250726042558/https://archive.gazettes.africa/archive/tz/2002/tz-government-gazette-dated-2002-12-06-no-49.pdf)
* [2002](https://web.archive.org/web/20250726042713/https://archive.gazettes.africa/archive/tz/2001/tz-government-gazette-dated-2001-09-28-no-39.pdf)
* [2001](https://web.archive.org/web/20250726042632/https://archive.gazettes.africa/archive/tz/2000/tz-government-gazette-dated-2000-09-22-no-38.pdf)
* [1998](https://web.archive.org/web/20250726042845/https://archive.gazettes.africa/archive/tz/1997/tz-government-gazette-dated-1997-10-17-no-42.pdf)
* [1994](https://web.archive.org/web/20250726043005/https://archive.gazettes.africa/archive/tz/1993/tz-government-gazette-dated-1993-10-15-no-42.pdf)
* [1992](https://web.archive.org/web/20250726043006/https://archive.gazettes.africa/archive/tz/1991/tz-government-gazette-dated-1991-08-30-no-35.pdf)
* [1991](https://web.archive.org/web/20250726043011/https://archive.gazettes.africa/archive/tz/1990/tz-government-gazette-dated-1990-08-24-no-36.pdf)
* [1987](https://web.archive.org/web/20250726043022/https://archive.gazettes.africa/archive/tz/1986/tz-government-gazette-dated-1986-10-10-no-41.pdf)
* [1984](https://web.archive.org/web/20250726043037/https://archive.gazettes.africa/archive/tz/1983/tz-government-gazette-dated-1983-11-18-no-46.pdf)
* [1983](https://web.archive.org/web/20250726042943/https://archive.gazettes.africa/archive/tz/1982/tz-government-gazette-dated-1982-11-12-no-46.pdf)
* [1982](https://web.archive.org/web/20250726043116/https://archive.gazettes.africa/archive/tz/1981/tz-government-gazette-dated-1981-09-25-no-39.pdf)
* [1975](https://web.archive.org/web/20250726043340/https://archive.gazettes.africa/archive/tz/1974/tz-government-gazette-dated-1974-10-25-no-43.pdf)
* [1970](https://web.archive.org/web/20250717155730/https://archive.gazettes.africa/archive/tz/1969/tz-government-gazette-dated-1969-09-26-no-42.pdf)
* [1969](https://web.archive.org/web/20250726043344/https://archive.gazettes.africa/archive/tz/1968/tz-government-gazette-dated-1968-11-29-no-53.pdf)
* [1965](https://web.archive.org/web/20250717150107/https://archive.gazettes.africa/archive/tz/1964/tz-government-gazette-dated-1964-12-18-no-75.pdf)
* <https://web.archive.org/web/20250726043450/https://www.timeanddate.com/holidays/tanzania/>
"""
country = "TZ"
supported_categories = (BANK, PUBLIC)
default_language = "sw"
# %s (estimated).
estimated_label = tr("%s (makisio)")
# %s (observed).
observed_label = tr("Badala ya %s")
# %s (observed, estimated).
observed_estimated_label = tr("Badala ya %s (makisio)")
supported_languages = ("en_US", "sw")
# Public Holidays Ordinance (Amendment) Act, 1964.
start_year = 1965
def __init__(self, *args, islamic_show_estimated: bool = True, **kwargs):
"""
Args:
islamic_show_estimated:
Whether to add "estimated" label to Islamic holidays name
if holiday date is estimated.
In Tanzania, the dates of the Islamic calendar usually fall a day later than
the corresponding dates in the Umm al-Qura calendar.
"""
ChristianHolidays.__init__(self)
InternationalHolidays.__init__(self)
IslamicHolidays.__init__(
self,
cls=TanzaniaIslamicHolidays,
show_estimated=islamic_show_estimated,
calendar_delta_days=+1,
)
StaticHolidays.__init__(self, TanzaniaStaticHolidays)
super().__init__(*args, **kwargs)
def _populate_observed(self, dts: set[date], dts_special: set[date]) -> None:
"""
Applies `SAT_SUN_TO_NEXT_MON_TUE` instead of `SAT_SUN_TO_NEXT_MON`
observed_rule for Christmas Day and the first day of Eid al-Fitr
holidays, based on section 4 of the Ordinance.
Added via Act No. 10 of 1994 on July 29th, 1994.
Removed via G.N. No. 486 of 2022 on July 15th, 2022.
For 1994 and 2022 edge cases, see `special_public_holidays_observed`.
"""
if self._year <= 1994 or self._year >= 2022:
return
# If a holiday falls on Holy Saturday.
holy_saturday = _timedelta(self._easter_sunday, -1)
for dt in sorted(dts):
if dt in dts_special:
rule = SAT_SUN_TO_NEXT_MON_TUE
elif dt == holy_saturday:
rule = SAT_TO_NEXT_TUE
else:
rule = SAT_SUN_TO_NEXT_MON
for name in self.get_list(dt):
self._add_observed(dt, name, rule=rule)
def _populate_bank_holidays(self):
# Sikukuu ya Pasaka.
# Status: In-Use.
# Only observed by financial institutions.
# Easter Sunday.
self._add_easter_sunday(tr("Sikukuu ya Pasaka"))
def _populate_public_holidays(self):
dts_observed = set()
dts_special = set()
# Removed via Act No. 28 of 1966 on August 4th, 1966.
# Readded in 1987.
if self._year <= 1966 or self._year >= 1987:
# New Year's Day.
dts_observed.add(self._add_new_years_day(tr("Mwaka Mpya")))
# Zanzibar Revolution Day.
dts_observed.add(self._add_holiday_jan_12(tr("Mapinduzi ya Zanzibar")))
# Added via Regular Notice No. 115 of 1973 on January 27th, 1973.
# Name changed in 1977 with the merger of ASP and TANU into CCM.
# Removed via Act No. 1 of 1993 on February 19th, 1993.
if 1973 <= self._year <= 1993:
self._add_holiday_feb_5(
# CCM Party Founding Day.
tr("Kuzaliwa kwa Chama cha Mapinduzi")
if self._year >= 1977
# Afro-Shirazi Party Founding Day.
else tr("Kuzaliwa kwa ASP")
)
# Added in 2006.
if self._year >= 2006:
dts_observed.add(
self._add_holiday_apr_7(
# The Sheikh Abeid Amani Karume Day.
tr(
"Siku ya kumbukumbu ya Rais wa Kwanza wa Serikali ya Mapinduzi Zanzibar "
"Sheikh Abeid Amani Karume"
)
)
)
# Good Friday.
self._add_good_friday(tr("Ijumaa Kuu"))
# Easter Monday.
self._add_easter_monday(tr("Jumatatu ya Pasaka"))
dts_observed.add(
self._add_holiday_apr_26(
# Union Celebrations.
tr("Muungano wa Tanzania")
if self._year >= 1991
# Union Day.
else tr("Sikukuu ya Muungano")
)
)
# International Workers' Day.
dts_observed.add(self._add_labor_day(tr("Sikukuu ya Wafanyakazi Ulimwenguni")))
# Renamed Peasants' Day in 1977.
# Name reverted back, with English name changed to International Trade Fair in 1994.
if self._year >= 1994:
# International Trade Fair.
name = tr("Sabasaba")
elif self._year >= 1977:
# Peasants' Day.
name = tr("Sikukuu ya Wakulima")
else:
# Saba Saba Day.
name = tr("Saba Saba")
dts_observed.add(self._add_holiday_jul_7(name))
# Made into its own holiday separate from Saba Saba Day in 1995.
if self._year >= 1995:
# Peasants' Day.
dts_observed.add(self._add_holiday_aug_8(tr("Sikukuu ya Wakulima")))
# Added via Supplements No. 39 of 2002 on October 4th, 2002.
# Reaffirmed via Act No. 25 of 2002 on November 14th, 2002.
if self._year >= 2002:
dts_observed.add(
self._add_holiday_oct_14(
# The Mwalimu Nyerere Day and Climax of the Uhuru Torch Race.
tr("Kumbukumbu ya Mwalimu Nyerere na Kilele cha mbio za Mwenge")
)
)
# Independence and Republic Day.
dts_observed.add(self._add_holiday_dec_9(tr("Uhuru na Jamhuri")))
# Christmas Day.
dt = self._add_christmas_day(tr("Kuzaliwa Kristo"))
dts_observed.add(dt)
dts_special.add(dt)
# Removed via Act No. 28 of 1966 on August 4th, 1966
# Readded via Act No. 1 of 1993 on February 19th, 1993.
if self._year <= 1965 or self._year >= 1993:
# Boxing Day.
dts_observed.add(self._add_christmas_day_two(tr("Siku ya Kupeana Zawadi")))
# Islamic Holidays.
# The 1975 official calendar lists only one Eid al-Fitr, unlike other contemporary sources
# (e.g., 1970, 1982). No legal changes have been found to explain this, so it is assumed
# to be a clerical error.
# Eid al-Fitr.
name = tr("Eid El-Fitri")
dts = self._add_eid_al_fitr_day(name)
dts_observed.update(dts)
dts_special.update(dts)
dts_observed.update(self._add_eid_al_fitr_day_two(name))
# Eid al-Adha.
name = tr("Eid El Hajj")
dts_observed.update(self._add_eid_al_adha_day(name))
# Removed via Act No. 28 of 1966 on August 4th, 1966
if self._year <= 1966:
dts_observed.update(self._add_eid_al_adha_day_two(name))
# Prophet's Birthday.
dts_observed.update(self._add_mawlid_day(tr("Maulidi")))
if self.observed:
self._populate_observed(dts_observed, dts_special)
class TZ(Tanzania):
pass
class TZA(Tanzania):
pass
class TanzaniaIslamicHolidays(_CustomIslamicHolidays):
EID_AL_ADHA_DATES_CONFIRMED_YEARS = (2013, 2025)
EID_AL_ADHA_DATES = {
# https://web.archive.org/web/20250717150107/https://archive.gazettes.africa/archive/tz/1964/tz-government-gazette-dated-1964-12-18-no-75.pdf
1965: (APR, 13),
# https://web.archive.org/web/20250717095924/https://archive.gazettes.africa/archive/tz/1967/tz-government-gazette-dated-1967-03-17-no-12.pdf
1967: (MAR, 22),
# https://web.archive.org/web/20250726040536/https://archive.gazettes.africa/archive/tz/1968/tz-government-gazette-dated-1968-03-01-no-9.pdf
1968: (MAR, 10),
1969: (FEB, 28),
# https://web.archive.org/web/20250726040512/https://archive.gazettes.africa/archive/tz/1969/tz-government-gazette-dated-1969-09-26-no-42.pdf
1970: (FEB, 17),
1975: (DEC, 14),
1982: (OCT, 5),
1983: (SEP, 25),
1984: (SEP, 9),
1987: (AUG, 7),
1991: (JUN, 21),
1992: (JUN, 12),
1994: (MAY, 20),
1998: (APR, 7),
2001: (MAR, 5),
2003: (FEB, 12),
2004: (FEB, 2),
2006: (JAN, 9),
2007: (JAN, 1),
2013: (OCT, 15),
2015: (SEP, 23),
2016: (SEP, 13),
2019: (AUG, 13),
2020: (JUL, 31),
}
EID_AL_FITR_DATES_CONFIRMED_YEARS = (2013, 2025)
EID_AL_FITR_DATES = {
# https://web.archive.org/web/20250726040204/https://archive.gazettes.africa/archive/tz/1964/tz-government-gazette-dated-1964-12-18-no-75.pdf
1965: (FEB, 3),
# https://web.archive.org/web/20250726040214/https://archive.gazettes.africa/archive/tz/1967/tz-government-gazette-dated-1967-01-10-no-2.pdf
1967: (JAN, 13),
# https://web.archive.org/web/20250726040216/https://archive.gazettes.africa/archive/tz/1967/tz-government-gazette-dated-1967-12-30-no-58.pdf
1968: (JAN, 2),
1969: (DEC, 11),
# 1970 Rough Estimate wasn't updated from last year figure.
1975: (OCT, 7),
1982: (JUL, 24),
1983: (JUL, 13),
1984: (JUL, 4),
1987: (MAY, 29),
1991: (APR, 15),
1992: (APR, 5),
1994: (MAR, 12),
1998: (JAN, 29),
2001: (DEC, 26),
2003: (NOV, 27),
2004: (OCT, 18),
2006: (OCT, 29),
2007: (OCT, 13),
2013: (AUG, 8),
2018: (JUN, 15),
2020: (MAY, 24),
2024: (APR, 10),
}
MAWLID_DATES_CONFIRMED_YEARS = (2013, 2025)
MAWLID_DATES = {
# https://web.archive.org/web/20250726040036/https://archive.gazettes.africa/archive/tz/1965/tz-government-gazette-dated-1965-02-12-no-7.pdf
1965: (JUL, 12),
# https://web.archive.org/web/20250726040035/https://archive.gazettes.africa/archive/tz/1967/tz-government-gazette-dated-1967-06-16-no-26.pdf
1967: (JUN, 21),
# https://web.archive.org/web/20250717095809/https://archive.gazettes.africa/archive/tz/1968/tz-government-gazette-dated-1968-06-07-no-23.pdf
1968: (JUN, 10),
1969: (MAY, 29),
# 1970 Rough Estimate wasn't updated from last year figure.
1975: (MAR, 25),
1982: (JAN, 8),
1983: (DEC, 20),
1984: (DEC, 8),
1987: (NOV, 4),
1991: (OCT, 19),
1992: (SEP, 10),
1994: (AUG, 18),
1998: (APR, 7),
2001: (JUL, 6),
2003: (MAY, 12),
2004: (MAY, 2),
2006: (APR, 10),
2007: (MAR, 31),
2013: (JAN, 24),
2015: ((JAN, 3), (DEC, 24)),
2020: (OCT, 29),
2025: (SEP, 4),
}
class TanzaniaStaticHolidays:
"""Tanzania special holidays.
References:
* [G.N. No. 2440 of 1967](https://web.archive.org/web/20250726035513/https://archive.gazettes.africa/archive/tz/1967/tz-government-gazette-dated-1967-11-28-no-50a.pdf)
* <https://web.archive.org/web/20231209061602/https://www.theeastafrican.co.ke/tea/business/tanzania-declares-public-holiday-on-census-day-3918836>
* <https://web.archive.org/web/20250413194112/https://www.dw.com/en/samia-suluhu-hassan-who-is-tanzanias-new-president/a-56932264>
"""
# Tanzania General Election Day.
tz_election_day = tr("Sikukuu ya Uchaguzi Mkuu wa Tanzania")
# National Population and Housing Census Day.
phc_census_day = tr("Siku ya Sensa ya Kitaifa ya Watu na Makazi")
# John Pombe Magufuli's Funeral.
john_magufuli_funeral = tr("Mazishi ya John Pombe Magufuli")
special_public_holidays = {
# Inauguration of East African Economic Community.
1967: (DEC, 1, tr("Uzinduzi wa Jumuiya ya Kiuchumi ya Afrika Mashariki")),
2002: (AUG, 25, phc_census_day),
# John Pombe Magufuli Inauguration Day.
2015: (NOV, 5, tr("Sikukuu ya Kuapishwa kwa John Pombe Magufuli")),
2020: (OCT, 28, tz_election_day),
2021: (
(MAR, 22, john_magufuli_funeral),
(MAR, 25, john_magufuli_funeral),
),
2022: (AUG, 23, phc_census_day),
}
special_public_holidays_observed = {
# Christmas Day.
1994: (DEC, 27, tr("Kuzaliwa Kristo")),
2022: (
# New Year's Day.
(JAN, 3, tr("Mwaka Mpya")),
# International Workers' Day.
(MAY, 2, tr("Sikukuu ya Wafanyakazi Ulimwenguni")),
# Eid al-Adha.
(JUL, 11, tr("Eid El Hajj")),
),
}
|
