Nanoseconds to milliseconds java. toNanos. public long toNanos(long duration) Equivalent to NANOSECONDS. The goal is to combine the nanoseconds and milliseconds values to ensure the maximum resolution possible with the limit given. The goal is to combine the nanoseconds and milliseconds values to ensure the maximum resolution possible with the limit given. e. My code looks like the following now: Nov 26, 2025 · This blog will guide you through the process of accurately converting nanoseconds to milliseconds and remaining nanoseconds in Java, covering unit fundamentals, potential pitfalls, step-by-step implementation, and best practices. NANOSECONDS); This always gives 0 but I need decimal points In Java, converting nanoseconds to milliseconds can be easily achieved by understanding the relationship between the two units of time. *; import java. Oct 16, 2025 · In this blog post, we will explore how to perform this conversion in Java, including core concepts, typical usage scenarios, common pitfalls, and best practices. The accuracy can vary, i. 665477 millisecond? long t = TimeUnit. Jun 28, 2024 · To convert nanoseconds to milliseconds and handle cases where the nanoseconds value is less than 999999 in Java, you can simply take the division remainder by 1,000,000 (divmod) to obtain the milliseconds component. convert(665477L, TimeUnit. Learn to create DateTimeFormatter in Java 8 for handling milliseconds, microseconds, and nanoseconds with clear examples. Actually, the precision of the value returned by nanoTime is always the same -- billionths of seconds. Convert milliseconds to date-time. MILLISECONDS. Parameters: This method accepts a mandatory parameter duration which is the duration in milliSeconds. public static TimeUnit[] values() Returns an array containing the constants of this enum type, in the order they are declared. This is for comparability with the sleep / wait methods and some other external library that gives out large nanosecond values. util. One millisecond is equal to one million nanoseconds (1 ms = 1,000,000 ns). This method may be used to iterate over the constants as follows valueOf. Two frequently used units for measuring time are nanoseconds and milliseconds. , not all systems have a clock that counts individual nanoseconds, and so the clock might only tick on 100 or 1000 nanoseconds and you will only ever get multiples of that. convert. Return Value: This method returns the converted duration as NanoSeconds. values. Sep 20, 2025 · The goal is to combine the nanoseconds and milliseconds values to ensure the maximum resolution possible with the limit given. Using TimeUnit, how can I convert 665477 nanosecond to 0. Parameters: duration - the duration. Date; class GFG {. Below program illustrate the implementation of TimeUnit toNanos () method: Program 1: import java. For example, to convert to milliseconds we must divide the result in nanoseconds by 1. Nanoseconds offer a very high level of precision, where one nanosecond is one-billionth of a second (10⁻⁹ seconds). Returns: the converted duration, or Long. Another pitfall with nanoTime () is that even though it provides nanosecond precision, it doesn’t guarantee nanosecond resolution (i. java time milliseconds nanotime I'm wondering what the most accurate way of converting a big nanoseconds value is to milliseconds and nanoseconds, with an upper limit on the nanoseconds of 999999. MIN_VALUE if conversion would negatively overflow, or Long. how often the value is updated). Nanoseconds are a much smaller unit of time compared to milliseconds, where 1 millisecond is equal to 1,000,000 nanoseconds. Conversions from finer to coarser granularities truncate, so lose precision. On the other hand, milliseconds are less precise, with one millisecond being one-thousandth of a second (10⁻³ seconds In Java programming, dealing with time measurements is a common task. MAX_VALUE if it would positively overflow. convert(duration, this). public long convert(long sourceDuration, TimeUnit sourceUnit) Converts the given time duration in the given unit to this unit. Learn how to accurately convert nanoseconds to milliseconds in Java, handling values less than 999999 with practical examples. In Java programming, dealing with time measurements is a common task. public static TimeUnit valueOf(String name) Returns the enum constant of this type with the specified name. concurrent. Link to a moment. 2. Time can be represented in various units such as nanoseconds (nano) and milliseconds (milli). concurrent package, that represents various units of time, ranging from nanoseconds to days. It provides a set of predefined constants, each corresponding to a specific unit of time, including: DAYS HOURS MINUTES SECONDS MILLISECONDS MICROSECONDS NANOSECONDS In Java programming, dealing with time measurements is a common task. The string must match exactly an identifier used to declare an enum constant in this type. Supports Unix timestamps in seconds, milliseconds, microseconds and nanoseconds. 000. Understanding TimeUnit TimeUnit is an enum, included in the java. srsw, 3hf3k, flstne, 9u6o, zxtp, u7hs82, borzdo, zhqdz, c1bbf, npimkl,