Difference between revisions of "Template:Birth and death year and age"
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===Usage=== | ===Usage=== | ||
| − | The templates {{tl|Birth year and age}} and {{tl|Death year and age}} return a person's year of birth or death and | + | The templates {{tl|Birth year and age}} and {{tl|Death year and age}} return a person's year of birth or death and their approximate age. The templates are useful when only the year, or year and month, of a person's birth and/or death are known, or if it is desired not to state a person's full dates of birth and death for privacy reasons. |
| − | Such an approximation differs from the approximation generated by {{tl|Birth based on age as of date}}; the latter can be used when the only detail available about someone's birth is a reference that establishes | + | Such an approximation differs from the approximation generated by {{tl|Birth based on age as of date}}; the latter can be used when the only detail available about someone's birth is a reference that establishes their age as of a certain date (such as the date that the reference was published). |
{| class="wikitable plainlinksneverexpand noprint" style="margin-top:0; width:100%; text-align:center;" | {| class="wikitable plainlinksneverexpand noprint" style="margin-top:0; width:100%; text-align:center;" | ||
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#that the present date is {{CURRENTDAY}} {{CURRENTMONTHNAME}} {{CURRENTYEAR}}. | #that the present date is {{CURRENTDAY}} {{CURRENTMONTHNAME}} {{CURRENTYEAR}}. | ||
| − | *If the person was born after {{CURRENTDAY}} {{CURRENTMONTHNAME}} {{#expr: {{CURRENTYEAR}} - 55}} | + | *If the person was born after {{CURRENTDAY}} {{CURRENTMONTHNAME}} {{#expr: {{CURRENTYEAR}} - 55}} then they will be {{age|{{#expr: {{CURRENTYEAR}} - 55}}|{{CURRENTMONTH}}|{{#expr: {{CURRENTDAY}} + 1 }} }} years old on {{CURRENTDAY}} {{CURRENTMONTHNAME}} {{CURRENTYEAR}} as they have not had their 55th birthday yet. On the other hand, if they were born exactly on or before {{CURRENTDAY}} {{CURRENTMONTHNAME}} {{#expr: {{CURRENTYEAR}} - 55}}, then they will be 55 years old. |
::Therefore, the template {{tlx|Birth year and age|{{#expr: {{CURRENTYEAR}} - 55}} }} | ::Therefore, the template {{tlx|Birth year and age|{{#expr: {{CURRENTYEAR}} - 55}} }} | ||
| − | ::displays | + | ::displays their birth year and age as: {{birth year and age|{{#expr: {{CURRENTYEAR}} - 55}}}} |
*Optionally, if we know the person's birth month but not the day, we can also have the template display the month. | *Optionally, if we know the person's birth month but not the day, we can also have the template display the month. | ||
::Let us assume that the person was born in June {{#expr: {{CURRENTYEAR}} - 55}}. Therefore: | ::Let us assume that the person was born in June {{#expr: {{CURRENTYEAR}} - 55}}. Therefore: | ||
| − | ::*If it is presently January {{CURRENTYEAR}}, then this year the person has not had | + | ::*If it is presently January {{CURRENTYEAR}}, then this year the person has not had their birthday yet. Therefore, the template {{tlx|Birth year and age|{{#expr: {{CURRENTYEAR}} - 55}}|6}} displays their birth year and age as: {{#expr: {{CURRENTYEAR}} - 55}} (age 54). |
| − | ::*If it is presently June {{CURRENTYEAR}}, we do not know whether the person has had | + | ::*If it is presently June {{CURRENTYEAR}}, we do not know whether the person has had their birthday this year yet since their day of birth is unknown. Therefore, the template displays their birth year and age as: {{#expr: {{CURRENTYEAR}} - 55}} (age 54–55). |
| − | ::*If it is presently December {{CURRENTYEAR}}, then this year the person has already had | + | ::*If it is presently December {{CURRENTYEAR}}, then this year the person has already had their birthday. Therefore, the template displays their birth year and age as: {{#expr: {{CURRENTYEAR}} - 55}} (age 55). |
====<nowiki>{{Death year and age}}</nowiki>==== | ====<nowiki>{{Death year and age}}</nowiki>==== | ||
Let us assume: | Let us assume: | ||
#that the person in question was born some time in {{#expr: {{CURRENTYEAR}} - 51}}; and | #that the person in question was born some time in {{#expr: {{CURRENTYEAR}} - 51}}; and | ||
| − | #that | + | #that they died some time in {{#expr: {{CURRENTYEAR}} - 1}}. |
| − | *We can posit as two extremes: (1) that the person was born on 31 December {{#expr: {{CURRENTYEAR}} - 51}} and died on 1 January {{#expr: {{CURRENTYEAR}} - 1}}, in which case | + | *We can posit as two extremes: (1) that the person was born on 31 December {{#expr: {{CURRENTYEAR}} - 51}} and died on 1 January {{#expr: {{CURRENTYEAR}} - 1}}, in which case they would have been 49 years old at the time of their death as they did not achieve their 50th birthday on 31 December {{#expr: {{CURRENTYEAR}} - 1}}; and (2) that they were born on 1 January {{#expr: {{CURRENTYEAR}} - 51}} and died on 31 December {{#expr: {{CURRENTYEAR}} - 1}}, in which case they would have been 50 years old at the time of their death as they had their 50th birthday on 1 January {{#expr: {{CURRENTYEAR}} - 1}}. |
::Therefore, the template {{tlx|Death year and age|{{#expr: {{CURRENTYEAR}} - 1}}|{{#expr: {{CURRENTYEAR}} - 51}} }} | ::Therefore, the template {{tlx|Death year and age|{{#expr: {{CURRENTYEAR}} - 1}}|{{#expr: {{CURRENTYEAR}} - 51}} }} | ||
| − | ::renders | + | ::renders their death year and age as: {{death year and age|{{#expr: {{CURRENTYEAR}} - 1}}|{{#expr: {{CURRENTYEAR}} - 51}}}} |
*Optionally, if we know the month of the person's death but not the day, we can also have the template display the month. | *Optionally, if we know the month of the person's death but not the day, we can also have the template display the month. | ||
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:Using the above examples and assuming the month is {{CURRENTMONTH}} ({{CURRENTMONTHNAME}}) | :Using the above examples and assuming the month is {{CURRENTMONTH}} ({{CURRENTMONTHNAME}}) | ||
::Therefore, the template {{tlx|Death year and age|{{#expr: {{CURRENTYEAR}} - 1}}|{{#expr: {{CURRENTYEAR}} - 51}}|{{CURRENTMONTH}} }} | ::Therefore, the template {{tlx|Death year and age|{{#expr: {{CURRENTYEAR}} - 1}}|{{#expr: {{CURRENTYEAR}} - 51}}|{{CURRENTMONTH}} }} | ||
| − | ::displays | + | ::displays their death year and age as: {{death year and age|{{#expr: {{CURRENTYEAR}} - 1}}|{{#expr: {{CURRENTYEAR}} - 51}}|{{CURRENTMONTH}}}} |
| − | If you wish to set out the full dates of birth and/or death of a person and thus to calculate | + | If you wish to set out the full dates of birth and/or death of a person and thus to calculate their age accurately, please use the templates {{tl|Birth date and age}} and {{tl|Death date and age}}. |
===Syntax=== | ===Syntax=== | ||
Revision as of 23:30, 9 August 2020
Usage
The templates {{Birth year and age}} and {{Death year and age}} return a person's year of birth or death and their approximate age. The templates are useful when only the year, or year and month, of a person's birth and/or death are known, or if it is desired not to state a person's full dates of birth and death for privacy reasons.
Such an approximation differs from the approximation generated by {{Birth based on age as of date}}; the latter can be used when the only detail available about someone's birth is a reference that establishes their age as of a certain date (such as the date that the reference was published).
The person's age is estimated as follows:
{{Birth year and age}}
Let us assume:
- that the person in question was born some time in 1970; and
- that the present date is 10 November 2025.
- If the person was born after 10 November 1970 then they will be 54 years old on 10 November 2025 as they have not had their 55th birthday yet. On the other hand, if they were born exactly on or before 10 November 1970, then they will be 55 years old.
- Therefore, the template
{{Birth year and age|1970}} - displays their birth year and age as: 1970 (age 54–55)
- Therefore, the template
- Optionally, if we know the person's birth month but not the day, we can also have the template display the month.
- Let us assume that the person was born in June 1970. Therefore:
- If it is presently January 2025, then this year the person has not had their birthday yet. Therefore, the template
{{Birth year and age|1970|6}}displays their birth year and age as: 1970 (age 54). - If it is presently June 2025, we do not know whether the person has had their birthday this year yet since their day of birth is unknown. Therefore, the template displays their birth year and age as: 1970 (age 54–55).
- If it is presently December 2025, then this year the person has already had their birthday. Therefore, the template displays their birth year and age as: 1970 (age 55).
- If it is presently January 2025, then this year the person has not had their birthday yet. Therefore, the template
- Let us assume that the person was born in June 1970. Therefore:
{{Death year and age}}
Let us assume:
- that the person in question was born some time in 1974; and
- that they died some time in 2024.
- We can posit as two extremes: (1) that the person was born on 31 December 1974 and died on 1 January 2024, in which case they would have been 49 years old at the time of their death as they did not achieve their 50th birthday on 31 December 2024; and (2) that they were born on 1 January 1974 and died on 31 December 2024, in which case they would have been 50 years old at the time of their death as they had their 50th birthday on 1 January 2024.
- Therefore, the template
{{Death year and age|2024|1974}} - renders their death year and age as: 2024 (aged 49–50)
- Therefore, the template
- Optionally, if we know the month of the person's death but not the day, we can also have the template display the month.
- Using the above examples and assuming the month is 11 (November)
- Therefore, the template
{{Death year and age|2024|1974|11}} - displays their death year and age as: November 2024 (aged 49–50)
- Therefore, the template
If you wish to set out the full dates of birth and/or death of a person and thus to calculate their age accurately, please use the templates {{Birth date and age}} and {{Death date and age}}.
Syntax
{{Birth year and age|year of birth}}
{{Birth year and age|year of birth|optional number of month of birth}}
{{Death year and age|year of death|year of birth}}
{{Death year and age|year of death|year of birth|optional number of month of death}}
Examples
Template:Nowiki template demo Template:Nowiki template demo Template:Nowiki template demo Template:Nowiki template demo Template:Nowiki template demo