--- title: Temporal Functions url: https://nexyron.tech/docs/cypher/functions/temporal description: This family documents the live Cypher function surface in this category, including both overview pages and one page per function references where the runtime exposes distinct calla --- # Temporal Functions This family documents the live Cypher function surface in this category, including both overview pages and one-page-per-function references where the runtime exposes distinct callable names. Nexyron's canonical temporal value in Cypher is an `i64` epoch-millisecond integer. `timestamp()`, `currenttimestamp()`, `current_timestamp()`, `now()`, `datetime(...)`, `toDateTime(...)`, date conversions, buckets, truncation, and temporal procedure bounds all use that same millisecond scalar contract. `time(...)` returns milliseconds since midnight, and fixed-width `duration(...)` values return integer milliseconds. Calendar-relative durations with months or years are not converted to a scalar duration because their exact width depends on the anchor date. Pages: - [active-streak](https://nexyron.tech/docs/cypher/functions/temporal/active-streak) - [align-to-grid](https://nexyron.tech/docs/cypher/functions/temporal/align-to-grid) - [asof-join](https://nexyron.tech/docs/cypher/functions/temporal/asof-join) - [baseline-deviation](https://nexyron.tech/docs/cypher/functions/temporal/baseline-deviation) - [bucket-wallclock](https://nexyron.tech/docs/cypher/functions/temporal/bucket-wallclock) - [bucket](https://nexyron.tech/docs/cypher/functions/temporal/bucket) - [burst-count](https://nexyron.tech/docs/cypher/functions/temporal/burst-count) - [burst-duration](https://nexyron.tech/docs/cypher/functions/temporal/burst-duration) - [calendar-window](https://nexyron.tech/docs/cypher/functions/temporal/calendar-window) - [changes](https://nexyron.tech/docs/cypher/functions/temporal/changes) - [context-alignment-join](https://nexyron.tech/docs/cypher/functions/temporal/context-alignment-join) - [count-window](https://nexyron.tech/docs/cypher/functions/temporal/count-window) - [cumulative-sum](https://nexyron.tech/docs/cypher/functions/temporal/cumulative-sum) - [current-date](https://nexyron.tech/docs/cypher/functions/temporal/current-date) - [current-time](https://nexyron.tech/docs/cypher/functions/temporal/current-time) - [current-timestamp](https://nexyron.tech/docs/cypher/functions/temporal/current-timestamp) - [currenttimestamp](https://nexyron.tech/docs/cypher/functions/temporal/currenttimestamp) - [date-trunc](https://nexyron.tech/docs/cypher/functions/temporal/date-trunc) - [date](https://nexyron.tech/docs/cypher/functions/temporal/date) - [datetime](https://nexyron.tech/docs/cypher/functions/temporal/datetime) - [day](https://nexyron.tech/docs/cypher/functions/temporal/day) - [delta](https://nexyron.tech/docs/cypher/functions/temporal/delta) - [derivative](https://nexyron.tech/docs/cypher/functions/temporal/derivative) - [diff](https://nexyron.tech/docs/cypher/functions/temporal/diff) - [downsample](https://nexyron.tech/docs/cypher/functions/temporal/downsample) - [duration](https://nexyron.tech/docs/cypher/functions/temporal/duration) - [dwell-time](https://nexyron.tech/docs/cypher/functions/temporal/dwell-time) - [ema](https://nexyron.tech/docs/cypher/functions/temporal/ema) - [event-window](https://nexyron.tech/docs/cypher/functions/temporal/event-window) - [frequency](https://nexyron.tech/docs/cypher/functions/temporal/frequency) - [gap-duration](https://nexyron.tech/docs/cypher/functions/temporal/gap-duration) - [hour](https://nexyron.tech/docs/cypher/functions/temporal/hour) - [idelta](https://nexyron.tech/docs/cypher/functions/temporal/idelta) - [inactivity-streak](https://nexyron.tech/docs/cypher/functions/temporal/inactivity-streak) - [increase](https://nexyron.tech/docs/cypher/functions/temporal/increase) - [intensity](https://nexyron.tech/docs/cypher/functions/temporal/intensity) - [inter-event-time](https://nexyron.tech/docs/cypher/functions/temporal/inter-event-time) - [irate](https://nexyron.tech/docs/cypher/functions/temporal/irate) - [lag](https://nexyron.tech/docs/cypher/functions/temporal/lag) - [latest-state-join](https://nexyron.tech/docs/cypher/functions/temporal/latest-state-join) - [latest](https://nexyron.tech/docs/cypher/functions/temporal/latest) - [lead](https://nexyron.tech/docs/cypher/functions/temporal/lead) - [local-datetime](https://nexyron.tech/docs/cypher/functions/temporal/local-datetime) - [local-time](https://nexyron.tech/docs/cypher/functions/temporal/local-time) - [localdatetime](https://nexyron.tech/docs/cypher/functions/temporal/localdatetime) - [minute](https://nexyron.tech/docs/cypher/functions/temporal/minute) - [missing-ratio](https://nexyron.tech/docs/cypher/functions/temporal/missing-ratio) - [month](https://nexyron.tech/docs/cypher/functions/temporal/month) - [nearest-prior](https://nexyron.tech/docs/cypher/functions/temporal/nearest-prior) - [now](https://nexyron.tech/docs/cypher/functions/temporal/now) - [ordered-sequence-analytics](https://nexyron.tech/docs/cypher/functions/temporal/ordered-sequence-analytics) - [percent-change](https://nexyron.tech/docs/cypher/functions/temporal/percent-change) - [rank-in-window](https://nexyron.tech/docs/cypher/functions/temporal/rank-in-window) - [rate-and-weighted-analytics](https://nexyron.tech/docs/cypher/functions/temporal/rate-and-weighted-analytics) - [rate](https://nexyron.tech/docs/cypher/functions/temporal/rate) - [recency](https://nexyron.tech/docs/cypher/functions/temporal/recency) - [regularity-score](https://nexyron.tech/docs/cypher/functions/temporal/regularity-score) - [resample-to-grid](https://nexyron.tech/docs/cypher/functions/temporal/resample-to-grid) - [resampling-and-windowing](https://nexyron.tech/docs/cypher/functions/temporal/resampling-and-windowing) - [resets](https://nexyron.tech/docs/cypher/functions/temporal/resets) - [rolling-avg](https://nexyron.tech/docs/cypher/functions/temporal/rolling-avg) - [rolling-quantile](https://nexyron.tech/docs/cypher/functions/temporal/rolling-quantile) - [rolling-stddev](https://nexyron.tech/docs/cypher/functions/temporal/rolling-stddev) - [rolling-sum](https://nexyron.tech/docs/cypher/functions/temporal/rolling-sum) - [sample-by](https://nexyron.tech/docs/cypher/functions/temporal/sample-by) - [second](https://nexyron.tech/docs/cypher/functions/temporal/second) - [session-duration](https://nexyron.tech/docs/cypher/functions/temporal/session-duration) - [session-window](https://nexyron.tech/docs/cypher/functions/temporal/session-window) - [sliding-window](https://nexyron.tech/docs/cypher/functions/temporal/sliding-window) - [spread](https://nexyron.tech/docs/cypher/functions/temporal/spread) - [stale-since](https://nexyron.tech/docs/cypher/functions/temporal/stale-since) - [state-and-session-analytics](https://nexyron.tech/docs/cypher/functions/temporal/state-and-session-analytics) - [state-duration](https://nexyron.tech/docs/cypher/functions/temporal/state-duration) - [state-transition-count](https://nexyron.tech/docs/cypher/functions/temporal/state-transition-count) - [state-window](https://nexyron.tech/docs/cypher/functions/temporal/state-window) - [temporal-joins](https://nexyron.tech/docs/cypher/functions/temporal/temporal-joins) - [time-in-state](https://nexyron.tech/docs/cypher/functions/temporal/time-in-state) - [time-weighted-avg](https://nexyron.tech/docs/cypher/functions/temporal/time-weighted-avg) - [time-weighted-sum](https://nexyron.tech/docs/cypher/functions/temporal/time-weighted-sum) - [time](https://nexyron.tech/docs/cypher/functions/temporal/time) - [timestamp](https://nexyron.tech/docs/cypher/functions/temporal/timestamp) - [todate](https://nexyron.tech/docs/cypher/functions/temporal/todate) - [todatetime](https://nexyron.tech/docs/cypher/functions/temporal/todatetime) - [toduration](https://nexyron.tech/docs/cypher/functions/temporal/toduration) - [totime](https://nexyron.tech/docs/cypher/functions/temporal/totime) - [tozoneddatetime](https://nexyron.tech/docs/cypher/functions/temporal/tozoneddatetime) - [tozonedtime](https://nexyron.tech/docs/cypher/functions/temporal/tozonedtime) - [truncate](https://nexyron.tech/docs/cypher/functions/temporal/truncate) - [year](https://nexyron.tech/docs/cypher/functions/temporal/year) - [zoned-datetime](https://nexyron.tech/docs/cypher/functions/temporal/zoned-datetime) - [zoneddatetime](https://nexyron.tech/docs/cypher/functions/temporal/zoneddatetime) - [zonedtime](https://nexyron.tech/docs/cypher/functions/temporal/zonedtime)