Duyuru:
15 Nisan 2025'ten önce Earth Engine'i kullanmak için kaydedilen tüm ticari olmayan projelerin Earth Engine erişimini sürdürmek için
ticari olmayan uygunluğu doğrulaması gerekir.
ee.Date.format
Koleksiyonlar ile düzeninizi koruyun
İçeriği tercihlerinize göre kaydedin ve kategorilere ayırın.
Tarihi dizeye dönüştürme.
Kullanım | İadeler |
---|
Date.format(format, timeZone) | Dize |
Bağımsız Değişken | Tür | Ayrıntılar |
---|
bu: date | Tarih | |
format | Dize, varsayılan: null | http://joda-time.sourceforge.net/apidocs/org/joda/time/format/DateTimeFormat.html adresinde açıklandığı gibi bir kalıp. Boş bırakılırsa ISO standart tarih biçimlendirmesi kullanılır. |
timeZone | Dize, varsayılan: null | Saat dilimi (ör. "America/Los_Angeles"); varsayılan olarak UTC kullanılır. |
Örnekler
Kod Düzenleyici (JavaScript)
// Various examples of ee.Date.format with Joda-Time formatting and time zones.
var date = ee.Date('2020-08-18'); // Defaults to UTC
print(date); // Date (2020-08-18 00:00:00)
// List of time zones:
// https://www.joda.org/joda-time/timezones.html
print(date.format(null, 'GMT')); // 2020-08-18T00:00:00
print(date.format(null, 'Etc/GMT')); // 2020-08-18T00:00:00
print(date.format(null, 'Etc/GMT+0')); // 2020-08-18T00:00:00
print(date.format(null, 'Zulu')); // 2020-08-18T00:00:00
print(date.format(null, 'UTC')); // 2020-08-18T00:00:00
print(date.format(null, 'America/Los_Angeles')); // 2020-08-17T17:00:00
print(date.format(null, 'US/Pacific')); // 2020-08-17T17:00:00
print(date.format(null, 'Etc/GMT+8')); // 2020-08-17T17:00:00
print(date.format(null, 'PST8PDT')); // 2020-08-17T17:00:00
print(date.format(null, 'Australia/Tasmania')); // 2020-08-18T10:00:00
print(date.format(null, 'Etc/GMT-10')); // 2020-08-18T10:00:00
// Reference for Joda-Time format characters:
// https://joda-time.sourceforge.net/apidocs/org/joda/time/format/DateTimeFormat.html
var datetime = ee.Date('1975-07-23T21:13:59'); // Defaults to UTC
print(datetime); // Date (1972-07-25 21:13:59)
// year of era and era
print(datetime.format('YYYY GG')); // 1975 AD
// century and year
print(datetime.format('CC YY')); // 19 75
// weekyear and week of weekyear
print(datetime.format('xxxx ww')); // 1975 30
// year and day of year
print(datetime.format('yy DDD')); // 75 204
// month of year and day of month
print(datetime.format('MM dd')); // 07 23
// day of week number and day of week text
print(datetime.format('e E')); // 3 Wed
print(datetime.format('e EEEEEEEE')); // 3 Wednesday
// half of day, hour of halfday, and clockhour of halfday
print(datetime.format('a K h')); // PM 9 9
print(datetime.format('a KK hh')); // PM 09 09
// hour of day, clockhour of day, minute, second, fraction of second
print(datetime.format('H k m s S')); // 21 21 13 59 0
print(datetime.format('HH kk mm ss SS')); // 21 21 13 59 00
// time zone
print(datetime.format('z')); // UTC
print(datetime.format('zzzz')); // Coordinated Universal Time
print(datetime.format('z', 'PST8PDT')); // PDT
print(datetime.format('zzzz', 'PST8PDT')); // Pacific Daylight Time
// time zone offset/id
print(datetime.format('Z')); // +0000
print(datetime.format('ZZ')); // +00:00
print(datetime.format('ZZZ')); // UTC
print(datetime.format('Z', 'PST8PDT')); // -0700
print(datetime.format('ZZ', 'PST8PDT')); // -07:00
print(datetime.format('ZZZ', 'PST8PDT')); // PST8PDT
// single quotes for text
print(datetime.format("YY 'yada' MM")); // 75 yada 07
// '' for a single quote
print(datetime.format("YY ''MM'' dd")); // 75 '07' 23
Python kurulumu
Python API'si ve etkileşimli geliştirme için geemap
kullanımı hakkında bilgi edinmek üzere
Python Ortamı sayfasına bakın.
import ee
import geemap.core as geemap
Colab (Python)
# Various examples of ee.Date.format with Joda-Time formatting and time zones.
date = ee.Date('2020-08-18') # Defaults to UTC
display(date) # Date (2020-08-18 00:00:00)
# List of time zones:
# https://www.joda.org/joda-time/timezones.html
display(date.format(None, 'GMT')) # 2020-08-18T00:00:00
display(date.format(None, 'Etc/GMT')) # 2020-08-18T00:00:00
display(date.format(None, 'Etc/GMT+0')) # 2020-08-18T00:00:00
display(date.format(None, 'Zulu')) # 2020-08-18T00:00:00
display(date.format(None, 'UTC')) # 2020-08-18T00:00:00
display(date.format(None, 'America/Los_Angeles')) # 2020-08-17T17:00:00
display(date.format(None, 'US/Pacific')) # 2020-08-17T17:00:00
display(date.format(None, 'Etc/GMT+8')) # 2020-08-17T17:00:00
display(date.format(None, 'PST8PDT')) # 2020-08-17T17:00:00
display(date.format(None, 'Australia/Tasmania')) # 2020-08-18T10:00:00
display(date.format(None, 'Etc/GMT-10')) # 2020-08-18T10:00:00
# Reference for Joda-Time format characters:
# http://joda-time.sourceforge.net/apidocs/org/joda/time/format/DateTimeFormat.html
datetime = ee.Date('1975-07-23T21:13:59') # Defaults to UTC
display(datetime) # Date (1972-07-25 21:13:59)
# year of era and era
display(datetime.format('YYYY GG')) # 1975 AD
# century and year
display(datetime.format('CC YY')) # 19 75
# weekyear and week of weekyear
display(datetime.format('xxxx ww')) # 1975 30
# year and day of year
display(datetime.format('yy DDD')) # 75 204
# month of year and day of month
display(datetime.format('MM dd')) # 07 23
# day of week number and day of week text
display(datetime.format('e E')) # 3 Wed
display(datetime.format('e EEEEEEEE')) # 3 Wednesday
# half of day, hour of halfday, and clockhour of halfday
display(datetime.format('a K h')) # PM 9 9
display(datetime.format('a KK hh')) # PM 09 09
# hour of day, clockhour of day, minute, second, fraction of second
display(datetime.format('H k m s S')) # 21 21 13 59 0
display(datetime.format('HH kk mm ss SS')) # 21 21 13 59 00
# time zone
display(datetime.format('z')) # UTC
display(datetime.format('zzzz')) # Coordinated Universal Time
display(datetime.format('z', 'PST8PDT')) # PDT
display(datetime.format('zzzz', 'PST8PDT')) # Pacific Daylight Time
# time zone offset/id
display(datetime.format('Z')) # +0000
display(datetime.format('ZZ')) # +00:00
display(datetime.format('ZZZ')) # UTC
display(datetime.format('Z', 'PST8PDT')) # -0700
display(datetime.format('ZZ', 'PST8PDT')) # -07:00
display(datetime.format('ZZZ', 'PST8PDT')) # PST8PDT
# single quotes for text
display(datetime.format("YY 'yada' MM")) # 75 yada 07
# '' for a single quote
display(datetime.format("YY ''MM'' dd")) # 75 '07' 23
Aksi belirtilmediği sürece bu sayfanın içeriği Creative Commons Atıf 4.0 Lisansı altında ve kod örnekleri Apache 2.0 Lisansı altında lisanslanmıştır. Ayrıntılı bilgi için Google Developers Site Politikaları'na göz atın. Java, Oracle ve/veya satış ortaklarının tescilli ticari markasıdır.
Son güncelleme tarihi: 2025-07-26 UTC.
[null,null,["Son güncelleme tarihi: 2025-07-26 UTC."],[[["\u003cp\u003e\u003ccode\u003eee.Date.format()\u003c/code\u003e converts an Earth Engine \u003ccode\u003eDate\u003c/code\u003e object to a formatted string representation.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eformat\u003c/code\u003e argument uses Joda-Time formatting patterns for customization.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003etimeZone\u003c/code\u003e argument, if provided, adjusts the output to the specified time zone; defaults to UTC.\u003c/p\u003e\n"],["\u003cp\u003eIf \u003ccode\u003eformat\u003c/code\u003e is omitted, the ISO standard date formatting is used.\u003c/p\u003e\n"],["\u003cp\u003eJoda-Time formatting patterns provide flexible options to display various date and time components, including year, month, day, hour, minute, second, time zone, and more.\u003c/p\u003e\n"]]],["The `Date.format()` method converts a date to a string. It accepts a `format` string based on Joda-Time patterns and an optional `timeZone` string; if these arguments are omitted, the function will use default ISO formatting and UTC timezone. The method takes a date as input, and outputs a string representing the date, with specific formatting and time zone adjustments. The document also shows how to apply the formatting patterns.\n"],null,["# ee.Date.format\n\nConvert a date to string.\n\n\u003cbr /\u003e\n\n| Usage | Returns |\n|------------------------------------------|---------|\n| Date.format`(`*format* `, `*timeZone*`)` | String |\n\n| Argument | Type | Details |\n|--------------|-----------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| this: `date` | Date | |\n| `format` | String, default: null | A pattern, as described at http://joda-time.sourceforge.net/apidocs/org/joda/time/format/DateTimeFormat.html; if omitted will use ISO standard date formatting. |\n| `timeZone` | String, default: null | The time zone (e.g., 'America/Los_Angeles'); defaults to UTC. |\n\nExamples\n--------\n\n### Code Editor (JavaScript)\n\n```javascript\n// Various examples of ee.Date.format with Joda-Time formatting and time zones.\n\nvar date = ee.Date('2020-08-18'); // Defaults to UTC\nprint(date); // Date (2020-08-18 00:00:00)\n\n// List of time zones:\n// https://www.joda.org/joda-time/timezones.html\n\nprint(date.format(null, 'GMT')); // 2020-08-18T00:00:00\nprint(date.format(null, 'Etc/GMT')); // 2020-08-18T00:00:00\nprint(date.format(null, 'Etc/GMT+0')); // 2020-08-18T00:00:00\nprint(date.format(null, 'Zulu')); // 2020-08-18T00:00:00\nprint(date.format(null, 'UTC')); // 2020-08-18T00:00:00\n\nprint(date.format(null, 'America/Los_Angeles')); // 2020-08-17T17:00:00\nprint(date.format(null, 'US/Pacific')); // 2020-08-17T17:00:00\nprint(date.format(null, 'Etc/GMT+8')); // 2020-08-17T17:00:00\nprint(date.format(null, 'PST8PDT')); // 2020-08-17T17:00:00\n\nprint(date.format(null, 'Australia/Tasmania')); // 2020-08-18T10:00:00\nprint(date.format(null, 'Etc/GMT-10')); // 2020-08-18T10:00:00\n\n// Reference for Joda-Time format characters:\n// https://joda-time.sourceforge.net/apidocs/org/joda/time/format/DateTimeFormat.html\n\nvar datetime = ee.Date('1975-07-23T21:13:59'); // Defaults to UTC\nprint(datetime); // Date (1972-07-25 21:13:59)\n\n// year of era and era\nprint(datetime.format('YYYY GG')); // 1975 AD\n// century and year\nprint(datetime.format('CC YY')); // 19 75\n// weekyear and week of weekyear\nprint(datetime.format('xxxx ww')); // 1975 30\n\n// year and day of year\nprint(datetime.format('yy DDD')); // 75 204\n// month of year and day of month\nprint(datetime.format('MM dd')); // 07 23\n\n// day of week number and day of week text\nprint(datetime.format('e E')); // 3 Wed\nprint(datetime.format('e EEEEEEEE')); // 3 Wednesday\n\n// half of day, hour of halfday, and clockhour of halfday\nprint(datetime.format('a K h')); // PM 9 9\nprint(datetime.format('a KK hh')); // PM 09 09\n\n// hour of day, clockhour of day, minute, second, fraction of second\nprint(datetime.format('H k m s S')); // 21 21 13 59 0\nprint(datetime.format('HH kk mm ss SS')); // 21 21 13 59 00\n\n// time zone\nprint(datetime.format('z')); // UTC\nprint(datetime.format('zzzz')); // Coordinated Universal Time\nprint(datetime.format('z', 'PST8PDT')); // PDT\nprint(datetime.format('zzzz', 'PST8PDT')); // Pacific Daylight Time\n\n// time zone offset/id\nprint(datetime.format('Z')); // +0000\nprint(datetime.format('ZZ')); // +00:00\nprint(datetime.format('ZZZ')); // UTC\nprint(datetime.format('Z', 'PST8PDT')); // -0700\nprint(datetime.format('ZZ', 'PST8PDT')); // -07:00\nprint(datetime.format('ZZZ', 'PST8PDT')); // PST8PDT\n\n// single quotes for text\nprint(datetime.format(\"YY 'yada' MM\")); // 75 yada 07\n// '' for a single quote\nprint(datetime.format(\"YY ''MM'' dd\")); // 75 '07' 23\n```\nPython setup\n\nSee the [Python Environment](/earth-engine/guides/python_install) page for information on the Python API and using\n`geemap` for interactive development. \n\n```python\nimport ee\nimport geemap.core as geemap\n```\n\n### Colab (Python)\n\n```python\n# Various examples of ee.Date.format with Joda-Time formatting and time zones.\n\ndate = ee.Date('2020-08-18') # Defaults to UTC\ndisplay(date) # Date (2020-08-18 00:00:00)\n\n# List of time zones:\n# https://www.joda.org/joda-time/timezones.html\n\ndisplay(date.format(None, 'GMT')) # 2020-08-18T00:00:00\ndisplay(date.format(None, 'Etc/GMT')) # 2020-08-18T00:00:00\ndisplay(date.format(None, 'Etc/GMT+0')) # 2020-08-18T00:00:00\ndisplay(date.format(None, 'Zulu')) # 2020-08-18T00:00:00\ndisplay(date.format(None, 'UTC')) # 2020-08-18T00:00:00\n\ndisplay(date.format(None, 'America/Los_Angeles')) # 2020-08-17T17:00:00\ndisplay(date.format(None, 'US/Pacific')) # 2020-08-17T17:00:00\ndisplay(date.format(None, 'Etc/GMT+8')) # 2020-08-17T17:00:00\ndisplay(date.format(None, 'PST8PDT')) # 2020-08-17T17:00:00\n\ndisplay(date.format(None, 'Australia/Tasmania')) # 2020-08-18T10:00:00\ndisplay(date.format(None, 'Etc/GMT-10')) # 2020-08-18T10:00:00\n\n# Reference for Joda-Time format characters:\n# http://joda-time.sourceforge.net/apidocs/org/joda/time/format/DateTimeFormat.html\n\ndatetime = ee.Date('1975-07-23T21:13:59') # Defaults to UTC\ndisplay(datetime) # Date (1972-07-25 21:13:59)\n\n# year of era and era\ndisplay(datetime.format('YYYY GG')) # 1975 AD\n# century and year\ndisplay(datetime.format('CC YY')) # 19 75\n# weekyear and week of weekyear\ndisplay(datetime.format('xxxx ww')) # 1975 30\n\n# year and day of year\ndisplay(datetime.format('yy DDD')) # 75 204\n# month of year and day of month\ndisplay(datetime.format('MM dd')) # 07 23\n\n# day of week number and day of week text\ndisplay(datetime.format('e E')) # 3 Wed\ndisplay(datetime.format('e EEEEEEEE')) # 3 Wednesday\n\n# half of day, hour of halfday, and clockhour of halfday\ndisplay(datetime.format('a K h')) # PM 9 9\ndisplay(datetime.format('a KK hh')) # PM 09 09\n\n# hour of day, clockhour of day, minute, second, fraction of second\ndisplay(datetime.format('H k m s S')) # 21 21 13 59 0\ndisplay(datetime.format('HH kk mm ss SS')) # 21 21 13 59 00\n\n# time zone\ndisplay(datetime.format('z')) # UTC\ndisplay(datetime.format('zzzz')) # Coordinated Universal Time\ndisplay(datetime.format('z', 'PST8PDT')) # PDT\ndisplay(datetime.format('zzzz', 'PST8PDT')) # Pacific Daylight Time\n\n# time zone offset/id\ndisplay(datetime.format('Z')) # +0000\ndisplay(datetime.format('ZZ')) # +00:00\ndisplay(datetime.format('ZZZ')) # UTC\ndisplay(datetime.format('Z', 'PST8PDT')) # -0700\ndisplay(datetime.format('ZZ', 'PST8PDT')) # -07:00\ndisplay(datetime.format('ZZZ', 'PST8PDT')) # PST8PDT\n\n# single quotes for text\ndisplay(datetime.format(\"YY 'yada' MM\")) # 75 yada 07\n# '' for a single quote\ndisplay(datetime.format(\"YY ''MM'' dd\")) # 75 '07' 23\n```"]]