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fix: Removed hardcoded timezone offsets and reduced the cache to 2 hours (#6837)

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Dheeraj Kumar Ketireddy 2025-03-27 16:53:20 +05:30 • committed by GitHub
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commit 784d651c5b
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1 changed files with 145 additions and 205 deletions
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350
apiserver/plane/app/views/timezone/base.py
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@ -21,221 +21,161 @@ class TimezoneEndpoint(APIView):
throttle_classes = [AuthenticationThrottle]
@method_decorator(cache_page(60 * 60 * 24))
@method_decorator(cache_page(60 * 60 * 2))
def get(self, request):
timezone_mapping = {
"-1100": [
("Midway Island", "Pacific/Midway"),
("American Samoa", "Pacific/Pago_Pago"),
],
"-1000": [
("Hawaii", "Pacific/Honolulu"),
("Aleutian Islands", "America/Adak"),
],
"-0930": [("Marquesas Islands", "Pacific/Marquesas")],
"-0900": [
("Alaska", "America/Anchorage"),
("Gambier Islands", "Pacific/Gambier"),
],
"-0800": [
("Pacific Time (US and Canada)", "America/Los_Angeles"),
("Baja California", "America/Tijuana"),
],
"-0700": [
("Mountain Time (US and Canada)", "America/Denver"),
("Arizona", "America/Phoenix"),
("Chihuahua, Mazatlan", "America/Chihuahua"),
],
"-0600": [
("Central Time (US and Canada)", "America/Chicago"),
("Saskatchewan", "America/Regina"),
("Guadalajara, Mexico City, Monterrey", "America/Mexico_City"),
("Tegucigalpa, Honduras", "America/Tegucigalpa"),
("Costa Rica", "America/Costa_Rica"),
],
"-0500": [
("Eastern Time (US and Canada)", "America/New_York"),
("Lima", "America/Lima"),
("Bogota", "America/Bogota"),
("Quito", "America/Guayaquil"),
("Chetumal", "America/Cancun"),
],
"-0430": [("Caracas (Old Venezuela Time)", "America/Caracas")],
"-0400": [
("Atlantic Time (Canada)", "America/Halifax"),
("Caracas", "America/Caracas"),
("Santiago", "America/Santiago"),
("La Paz", "America/La_Paz"),
("Manaus", "America/Manaus"),
("Georgetown", "America/Guyana"),
("Bermuda", "Atlantic/Bermuda"),
],
"-0330": [("Newfoundland Time (Canada)", "America/St_Johns")],
"-0300": [
("Buenos Aires", "America/Argentina/Buenos_Aires"),
("Brasilia", "America/Sao_Paulo"),
("Greenland", "America/Godthab"),
("Montevideo", "America/Montevideo"),
("Falkland Islands", "Atlantic/Stanley"),
],
"-0200": [
(
"South Georgia and the South Sandwich Islands",
"Atlantic/South_Georgia",
)
],
"-0100": [
("Azores", "Atlantic/Azores"),
("Cape Verde Islands", "Atlantic/Cape_Verde"),
],
"+0000": [
("Dublin", "Europe/Dublin"),
("Reykjavik", "Atlantic/Reykjavik"),
("Lisbon", "Europe/Lisbon"),
("Monrovia", "Africa/Monrovia"),
("Casablanca", "Africa/Casablanca"),
],
"+0100": [
("Central European Time (Berlin, Rome, Paris)", "Europe/Paris"),
("West Central Africa", "Africa/Lagos"),
("Algiers", "Africa/Algiers"),
("Lagos", "Africa/Lagos"),
("Tunis", "Africa/Tunis"),
],
"+0200": [
("Eastern European Time (Cairo, Helsinki, Kyiv)", "Europe/Kiev"),
("Athens", "Europe/Athens"),
("Jerusalem", "Asia/Jerusalem"),
("Johannesburg", "Africa/Johannesburg"),
("Harare, Pretoria", "Africa/Harare"),
],
"+0300": [
("Moscow Time", "Europe/Moscow"),
("Baghdad", "Asia/Baghdad"),
("Nairobi", "Africa/Nairobi"),
("Kuwait, Riyadh", "Asia/Riyadh"),
],
"+0330": [("Tehran", "Asia/Tehran")],
"+0400": [
("Abu Dhabi", "Asia/Dubai"),
("Baku", "Asia/Baku"),
("Yerevan", "Asia/Yerevan"),
("Astrakhan", "Europe/Astrakhan"),
("Tbilisi", "Asia/Tbilisi"),
("Mauritius", "Indian/Mauritius"),
],
"+0500": [
("Islamabad", "Asia/Karachi"),
("Karachi", "Asia/Karachi"),
("Tashkent", "Asia/Tashkent"),
("Yekaterinburg", "Asia/Yekaterinburg"),
("Maldives", "Indian/Maldives"),
("Chagos", "Indian/Chagos"),
],
"+0530": [
("Chennai", "Asia/Kolkata"),
("Kolkata", "Asia/Kolkata"),
("Mumbai", "Asia/Kolkata"),
("New Delhi", "Asia/Kolkata"),
("Sri Jayawardenepura", "Asia/Colombo"),
],
"+0545": [("Kathmandu", "Asia/Kathmandu")],
"+0600": [
("Dhaka", "Asia/Dhaka"),
("Almaty", "Asia/Almaty"),
("Bishkek", "Asia/Bishkek"),
("Thimphu", "Asia/Thimphu"),
],
"+0630": [
("Yangon (Rangoon)", "Asia/Yangon"),
("Cocos Islands", "Indian/Cocos"),
],
"+0700": [
("Bangkok", "Asia/Bangkok"),
("Hanoi", "Asia/Ho_Chi_Minh"),
("Jakarta", "Asia/Jakarta"),
("Novosibirsk", "Asia/Novosibirsk"),
("Krasnoyarsk", "Asia/Krasnoyarsk"),
],
"+0800": [
("Beijing", "Asia/Shanghai"),
("Singapore", "Asia/Singapore"),
("Perth", "Australia/Perth"),
("Hong Kong", "Asia/Hong_Kong"),
("Ulaanbaatar", "Asia/Ulaanbaatar"),
("Palau", "Pacific/Palau"),
],
"+0845": [("Eucla", "Australia/Eucla")],
"+0900": [
("Tokyo", "Asia/Tokyo"),
("Seoul", "Asia/Seoul"),
("Yakutsk", "Asia/Yakutsk"),
],
"+0930": [
("Adelaide", "Australia/Adelaide"),
("Darwin", "Australia/Darwin"),
],
"+1000": [
("Sydney", "Australia/Sydney"),
("Brisbane", "Australia/Brisbane"),
("Guam", "Pacific/Guam"),
("Vladivostok", "Asia/Vladivostok"),
("Tahiti", "Pacific/Tahiti"),
],
"+1030": [("Lord Howe Island", "Australia/Lord_Howe")],
"+1100": [
("Solomon Islands", "Pacific/Guadalcanal"),
("Magadan", "Asia/Magadan"),
("Norfolk Island", "Pacific/Norfolk"),
("Bougainville Island", "Pacific/Bougainville"),
("Chokurdakh", "Asia/Srednekolymsk"),
],
"+1200": [
("Auckland", "Pacific/Auckland"),
("Wellington", "Pacific/Auckland"),
("Fiji Islands", "Pacific/Fiji"),
("Anadyr", "Asia/Anadyr"),
],
"+1245": [("Chatham Islands", "Pacific/Chatham")],
"+1300": [("Nuku'alofa", "Pacific/Tongatapu"), ("Samoa", "Pacific/Apia")],
"+1400": [("Kiritimati Island", "Pacific/Kiritimati")],
}
timezone_locations = [
('Midway Island', 'Pacific/Midway'), # UTC-11:00
('American Samoa', 'Pacific/Pago_Pago'), # UTC-11:00
('Hawaii', 'Pacific/Honolulu'), # UTC-10:00
('Aleutian Islands', 'America/Adak'), # UTC-10:00 (DST: UTC-09:00)
('Marquesas Islands', 'Pacific/Marquesas'), # UTC-09:30
('Alaska', 'America/Anchorage'), # UTC-09:00 (DST: UTC-08:00)
('Gambier Islands', 'Pacific/Gambier'), # UTC-09:00
('Pacific Time (US and Canada)', 'America/Los_Angeles'), # UTC-08:00 (DST: UTC-07:00)
('Baja California', 'America/Tijuana'), # UTC-08:00 (DST: UTC-07:00)
('Mountain Time (US and Canada)', 'America/Denver'), # UTC-07:00 (DST: UTC-06:00)
('Arizona', 'America/Phoenix'), # UTC-07:00
('Chihuahua, Mazatlan', 'America/Chihuahua'), # UTC-07:00 (DST: UTC-06:00)
('Central Time (US and Canada)', 'America/Chicago'), # UTC-06:00 (DST: UTC-05:00)
('Saskatchewan', 'America/Regina'), # UTC-06:00
('Guadalajara, Mexico City, Monterrey', 'America/Mexico_City'), # UTC-06:00 (DST: UTC-05:00)
('Tegucigalpa, Honduras', 'America/Tegucigalpa'), # UTC-06:00
('Costa Rica', 'America/Costa_Rica'), # UTC-06:00
('Eastern Time (US and Canada)', 'America/New_York'), # UTC-05:00 (DST: UTC-04:00)
('Lima', 'America/Lima'), # UTC-05:00
('Bogota', 'America/Bogota'), # UTC-05:00
('Quito', 'America/Guayaquil'), # UTC-05:00
('Chetumal', 'America/Cancun'), # UTC-05:00 (DST: UTC-04:00)
('Caracas (Old Venezuela Time)', 'America/Caracas'), # UTC-04:30
('Atlantic Time (Canada)', 'America/Halifax'), # UTC-04:00 (DST: UTC-03:00)
('Caracas', 'America/Caracas'), # UTC-04:00
('Santiago', 'America/Santiago'), # UTC-04:00 (DST: UTC-03:00)
('La Paz', 'America/La_Paz'), # UTC-04:00
('Manaus', 'America/Manaus'), # UTC-04:00
('Georgetown', 'America/Guyana'), # UTC-04:00
('Bermuda', 'Atlantic/Bermuda'), # UTC-04:00 (DST: UTC-03:00)
('Newfoundland Time (Canada)', 'America/St_Johns'), # UTC-03:30 (DST: UTC-02:30)
('Buenos Aires', 'America/Argentina/Buenos_Aires'), # UTC-03:00
('Brasilia', 'America/Sao_Paulo'), # UTC-03:00
('Greenland', 'America/Godthab'), # UTC-03:00 (DST: UTC-02:00)
('Montevideo', 'America/Montevideo'), # UTC-03:00
('Falkland Islands', 'Atlantic/Stanley'), # UTC-03:00
('South Georgia and the South Sandwich Islands', 'Atlantic/South_Georgia'), # UTC-02:00
('Azores', 'Atlantic/Azores'), # UTC-01:00 (DST: UTC+00:00)
('Cape Verde Islands', 'Atlantic/Cape_Verde'), # UTC-01:00
('Dublin', 'Europe/Dublin'), # UTC+00:00 (DST: UTC+01:00)
('Reykjavik', 'Atlantic/Reykjavik'), # UTC+00:00
('Lisbon', 'Europe/Lisbon'), # UTC+00:00 (DST: UTC+01:00)
('Monrovia', 'Africa/Monrovia'), # UTC+00:00
('Casablanca', 'Africa/Casablanca'), # UTC+00:00 (DST: UTC+01:00)
('Central European Time (Berlin, Rome, Paris)', 'Europe/Paris'), # UTC+01:00 (DST: UTC+02:00)
('West Central Africa', 'Africa/Lagos'), # UTC+01:00
('Algiers', 'Africa/Algiers'), # UTC+01:00
('Lagos', 'Africa/Lagos'), # UTC+01:00
('Tunis', 'Africa/Tunis'), # UTC+01:00
('Eastern European Time (Cairo, Helsinki, Kyiv)', 'Europe/Kiev'), # UTC+02:00 (DST: UTC+03:00)
('Athens', 'Europe/Athens'), # UTC+02:00 (DST: UTC+03:00)
('Jerusalem', 'Asia/Jerusalem'), # UTC+02:00 (DST: UTC+03:00)
('Johannesburg', 'Africa/Johannesburg'), # UTC+02:00
('Harare, Pretoria', 'Africa/Harare'), # UTC+02:00
('Moscow Time', 'Europe/Moscow'), # UTC+03:00
('Baghdad', 'Asia/Baghdad'), # UTC+03:00
('Nairobi', 'Africa/Nairobi'), # UTC+03:00
('Kuwait, Riyadh', 'Asia/Riyadh'), # UTC+03:00
('Tehran', 'Asia/Tehran'), # UTC+03:30 (DST: UTC+04:30)
('Abu Dhabi', 'Asia/Dubai'), # UTC+04:00
('Baku', 'Asia/Baku'), # UTC+04:00 (DST: UTC+05:00)
('Yerevan', 'Asia/Yerevan'), # UTC+04:00 (DST: UTC+05:00)
('Astrakhan', 'Europe/Astrakhan'), # UTC+04:00
('Tbilisi', 'Asia/Tbilisi'), # UTC+04:00
('Mauritius', 'Indian/Mauritius'), # UTC+04:00
('Islamabad', 'Asia/Karachi'), # UTC+05:00
('Karachi', 'Asia/Karachi'), # UTC+05:00
('Tashkent', 'Asia/Tashkent'), # UTC+05:00
('Yekaterinburg', 'Asia/Yekaterinburg'), # UTC+05:00
('Maldives', 'Indian/Maldives'), # UTC+05:00
('Chagos', 'Indian/Chagos'), # UTC+05:00
('Chennai', 'Asia/Kolkata'), # UTC+05:30
('Kolkata', 'Asia/Kolkata'), # UTC+05:30
('Mumbai', 'Asia/Kolkata'), # UTC+05:30
('New Delhi', 'Asia/Kolkata'), # UTC+05:30
('Sri Jayawardenepura', 'Asia/Colombo'), # UTC+05:30
('Kathmandu', 'Asia/Kathmandu'), # UTC+05:45
('Dhaka', 'Asia/Dhaka'), # UTC+06:00
('Almaty', 'Asia/Almaty'), # UTC+06:00
('Bishkek', 'Asia/Bishkek'), # UTC+06:00
('Thimphu', 'Asia/Thimphu'), # UTC+06:00
('Yangon (Rangoon)', 'Asia/Yangon'), # UTC+06:30
('Cocos Islands', 'Indian/Cocos'), # UTC+06:30
('Bangkok', 'Asia/Bangkok'), # UTC+07:00
('Hanoi', 'Asia/Ho_Chi_Minh'), # UTC+07:00
('Jakarta', 'Asia/Jakarta'), # UTC+07:00
('Novosibirsk', 'Asia/Novosibirsk'), # UTC+07:00
('Krasnoyarsk', 'Asia/Krasnoyarsk'), # UTC+07:00
('Beijing', 'Asia/Shanghai'), # UTC+08:00
('Singapore', 'Asia/Singapore'), # UTC+08:00
('Perth', 'Australia/Perth'), # UTC+08:00
('Hong Kong', 'Asia/Hong_Kong'), # UTC+08:00
('Ulaanbaatar', 'Asia/Ulaanbaatar'), # UTC+08:00
('Palau', 'Pacific/Palau'), # UTC+08:00
('Eucla', 'Australia/Eucla'), # UTC+08:45
('Tokyo', 'Asia/Tokyo'), # UTC+09:00
('Seoul', 'Asia/Seoul'), # UTC+09:00
('Yakutsk', 'Asia/Yakutsk'), # UTC+09:00
('Adelaide', 'Australia/Adelaide'), # UTC+09:30 (DST: UTC+10:30)
('Darwin', 'Australia/Darwin'), # UTC+09:30
('Sydney', 'Australia/Sydney'), # UTC+10:00 (DST: UTC+11:00)
('Brisbane', 'Australia/Brisbane'), # UTC+10:00
('Guam', 'Pacific/Guam'), # UTC+10:00
('Vladivostok', 'Asia/Vladivostok'), # UTC+10:00
('Tahiti', 'Pacific/Tahiti'), # UTC+10:00
('Lord Howe Island', 'Australia/Lord_Howe'), # UTC+10:30 (DST: UTC+11:00)
('Solomon Islands', 'Pacific/Guadalcanal'), # UTC+11:00
('Magadan', 'Asia/Magadan'), # UTC+11:00
('Norfolk Island', 'Pacific/Norfolk'), # UTC+11:00
('Bougainville Island', 'Pacific/Bougainville'), # UTC+11:00
('Chokurdakh', 'Asia/Srednekolymsk'), # UTC+11:00
('Auckland', 'Pacific/Auckland'), # UTC+12:00 (DST: UTC+13:00)
('Wellington', 'Pacific/Auckland'), # UTC+12:00 (DST: UTC+13:00)
('Fiji Islands', 'Pacific/Fiji'), # UTC+12:00 (DST: UTC+13:00)
('Anadyr', 'Asia/Anadyr'), # UTC+12:00
('Chatham Islands', 'Pacific/Chatham'), # UTC+12:45 (DST: UTC+13:45)
("Nuku'alofa", 'Pacific/Tongatapu'), # UTC+13:00
('Samoa', 'Pacific/Apia'), # UTC+13:00 (DST: UTC+14:00)
('Kiritimati Island', 'Pacific/Kiritimati') # UTC+14:00
]
timezone_list = []
now = datetime.now()
# Process timezone mapping
for offset, locations in timezone_mapping.items():
sign = "-" if offset.startswith("-") else "+"
hours = offset[1:3]
minutes = offset[3:] if len(offset) > 3 else "00"
for friendly_name, tz_identifier in timezone_locations:
for friendly_name, tz_identifier in locations:
try:
tz = pytz.timezone(tz_identifier)
current_offset = now.astimezone(tz).strftime("%z")
try:
tz = pytz.timezone(tz_identifier)
current_offset = now.astimezone(tz).strftime("%z")
# converting and formatting UTC offset to GMT offset
current_utc_offset = now.astimezone(tz).utcoffset()
total_seconds = int(current_utc_offset.total_seconds())
hours_offset = total_seconds // 3600
minutes_offset = abs(total_seconds % 3600) // 60
gmt_offset = (
f"GMT{'+' if hours_offset >= 0 else '-'}"
f"{abs(hours_offset):02}:{minutes_offset:02}"
)
# converting and formatting UTC offset to GMT offset
current_utc_offset = now.astimezone(tz).utcoffset()
total_seconds = int(current_utc_offset.total_seconds())
hours_offset = total_seconds // 3600
minutes_offset = abs(total_seconds % 3600) // 60
offset = (
f"{'+' if hours_offset >= 0 else '-'}"
f"{abs(hours_offset):02}:{minutes_offset:02}"
)
timezone_value = {
"offset": int(current_offset),
"utc_offset": f"UTC{sign}{hours}:{minutes}",
"gmt_offset": gmt_offset,
"value": tz_identifier,
"label": f"{friendly_name}",
}
timezone_value = {
"offset": int(current_offset),
"utc_offset": f"UTC{offset}",
"gmt_offset": f"GMT{offset}",
"value": tz_identifier,
"label": f"{friendly_name}",
}
timezone_list.append(timezone_value)
except pytz.exceptions.UnknownTimeZoneError:
continue
timezone_list.append(timezone_value)
except pytz.exceptions.UnknownTimeZoneError:
continue
# Sort by offset and then by label
timezone_list.sort(key=lambda x: (x["offset"], x["label"]))