query: How do we know that clocks slow down relative to each other?
positive_passages.docid: 152937
positive_passages.text: Which observer's time is proper time?
negative_passages.docid: 13757
negative_passages.text: Is there a device that could measure the speed of time?
negative_passages.docid: 67661
negative_passages.text: Is there an observable of time?
negative_passages.docid: 144522
negative_passages.text: How to calculate time difference in java?
negative_passages.docid: 139681
negative_passages.text: Light clock with mirrors on a moving train
negative_passages.docid: 59093
negative_passages.text: How do I adjust the Clock Indicator format?
negative_passages.docid: 98899
negative_passages.text: How to check if DST (Daylight Saving Time) is in effect, and if so, the offset?
negative_passages.docid: 152334
negative_passages.text: What if a light clock travels perpendicular to mirrors that make up the clock?
negative_passages.docid: 109696
negative_passages.text: determine if "24-hour clock" setting is set
negative_passages.docid: 100487
negative_passages.text: How to derive relation for time derivative in a rotating reference frame
negative_passages.docid: 93336
negative_passages.text: Understanding time crystals
negative_passages.docid: 11437
negative_passages.text: Clock displays incorrect time
negative_passages.docid: 88879
negative_passages.text: Time dilation as an observer in special relativity
negative_passages.docid: 82798
negative_passages.text: A pattern involving Times
negative_passages.docid: 130048
negative_passages.text: How can I get my correct current local time?
negative_passages.docid: 139741
negative_passages.text: Better method to measure the time period of a pendulum
negative_passages.docid: 50651
negative_passages.text: Does special relativity imply that time dilation is affected by an orientation of clocks?